diff --git a/package-lock.json b/package-lock.json
index cabf128..939d1c7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,28 +13,17 @@
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@@ -998,9 +987,9 @@
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@@ -1150,13 +1139,13 @@
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@@ -1192,25 +1181,36 @@
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-      "integrity": "sha1-vwDvT9q2uhtG7Le2KbTH7VcVzHc=",
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@@ -1239,9 +1239,9 @@
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@@ -1375,9 +1375,9 @@
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@@ -1471,6 +1471,21 @@
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@@ -1726,13 +1741,14 @@
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@@ -1742,7 +1758,8 @@
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@@ -1760,32 +1777,37 @@
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@@ -1793,7 +1815,7 @@
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@@ -1816,11 +1838,11 @@
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@@ -1844,7 +1866,7 @@
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@@ -1870,7 +1892,7 @@
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@@ -1887,8 +1909,9 @@
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@@ -1898,6 +1921,7 @@
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@@ -1970,7 +1998,7 @@
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@@ -1983,12 +2011,20 @@
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-          "version": "1.0.6",
+          "version": "1.1.1",
+          "bundled": true,
+          "optional": true,
+          "requires": {
+            "npm-normalize-package-bin": "^1.0.1"
+          }
+        },
+        "npm-normalize-package-bin": {
+          "version": "1.0.1",
           "bundled": true,
           "optional": true
         },
         "npm-packlist": {
-          "version": "1.4.1",
+          "version": "1.4.7",
           "bundled": true,
           "optional": true,
           "requires": {
@@ -2009,7 +2045,8 @@
         },
         "number-is-nan": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -2019,6 +2056,7 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -2048,7 +2086,7 @@
           "optional": true
         },
         "process-nextick-args": {
-          "version": "2.0.0",
+          "version": "2.0.1",
           "bundled": true,
           "optional": true
         },
@@ -2085,7 +2123,7 @@
           }
         },
         "rimraf": {
-          "version": "2.6.3",
+          "version": "2.7.1",
           "bundled": true,
           "optional": true,
           "requires": {
@@ -2094,7 +2132,8 @@
         },
         "safe-buffer": {
           "version": "5.1.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -2107,7 +2146,7 @@
           "optional": true
         },
         "semver": {
-          "version": "5.7.0",
+          "version": "5.7.1",
           "bundled": true,
           "optional": true
         },
@@ -2124,6 +2163,7 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -2141,6 +2181,7 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -2151,17 +2192,17 @@
           "optional": true
         },
         "tar": {
-          "version": "4.4.8",
+          "version": "4.4.13",
           "bundled": true,
           "optional": true,
           "requires": {
             "chownr": "^1.1.1",
             "fs-minipass": "^1.2.5",
-            "minipass": "^2.3.4",
-            "minizlib": "^1.1.1",
+            "minipass": "^2.8.6",
+            "minizlib": "^1.2.1",
             "mkdirp": "^0.5.0",
             "safe-buffer": "^5.1.2",
-            "yallist": "^3.0.2"
+            "yallist": "^3.0.3"
           }
         },
         "util-deprecate": {
@@ -2179,11 +2220,13 @@
         },
         "wrappy": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "yallist": {
-          "version": "3.0.3",
-          "bundled": true
+          "version": "3.1.1",
+          "bundled": true,
+          "optional": true
         }
       }
     },
@@ -2204,49 +2247,130 @@
       "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A=="
     },
     "ganache-cli": {
-      "version": "6.4.3",
-      "resolved": "https://registry.npmjs.org/ganache-cli/-/ganache-cli-6.4.3.tgz",
-      "integrity": "sha512-3G+CK4ojipDvxQHlpX8PjqaOMRWVcaLZZSW97Bv7fdcPTXQwkji2yY5CY6J12Atiub4M4aJc0va+q3HXeerbIA==",
+      "version": "6.9.0",
+      "resolved": "https://registry.npmjs.org/ganache-cli/-/ganache-cli-6.9.0.tgz",
+      "integrity": "sha512-ZdL6kPrApXF/O+f6uU431OJcwxMk69H3KPDSHHrMP82ZvZRNpDHbR+rVv7XX/YUeoQ5q6nZ2AFiGiFAVn9pfzA==",
       "requires": {
-        "bn.js": "4.11.8",
-        "source-map-support": "0.5.9",
-        "yargs": "11.1.0"
+        "ethereumjs-util": "6.1.0",
+        "source-map-support": "0.5.12",
+        "yargs": "13.2.4"
       },
       "dependencies": {
         "ansi-regex": {
-          "version": "3.0.0",
+          "version": "4.1.0",
           "bundled": true
         },
+        "ansi-styles": {
+          "version": "3.2.1",
+          "bundled": true,
+          "requires": {
+            "color-convert": "^1.9.0"
+          }
+        },
+        "bindings": {
+          "version": "1.5.0",
+          "bundled": true,
+          "requires": {
+            "file-uri-to-path": "1.0.0"
+          }
+        },
+        "bip66": {
+          "version": "1.1.5",
+          "bundled": true,
+          "requires": {
+            "safe-buffer": "^5.0.1"
+          }
+        },
         "bn.js": {
           "version": "4.11.8",
           "bundled": true
         },
+        "brorand": {
+          "version": "1.1.0",
+          "bundled": true
+        },
+        "browserify-aes": {
+          "version": "1.2.0",
+          "bundled": true,
+          "requires": {
+            "buffer-xor": "^1.0.3",
+            "cipher-base": "^1.0.0",
+            "create-hash": "^1.1.0",
+            "evp_bytestokey": "^1.0.3",
+            "inherits": "^2.0.1",
+            "safe-buffer": "^5.0.1"
+          }
+        },
         "buffer-from": {
           "version": "1.1.1",
           "bundled": true
         },
+        "buffer-xor": {
+          "version": "1.0.3",
+          "bundled": true
+        },
         "camelcase": {
-          "version": "4.1.0",
+          "version": "5.3.1",
           "bundled": true
         },
+        "cipher-base": {
+          "version": "1.0.4",
+          "bundled": true,
+          "requires": {
+            "inherits": "^2.0.1",
+            "safe-buffer": "^5.0.1"
+          }
+        },
         "cliui": {
-          "version": "4.1.0",
+          "version": "5.0.0",
           "bundled": true,
           "requires": {
-            "string-width": "^2.1.1",
-            "strip-ansi": "^4.0.0",
-            "wrap-ansi": "^2.0.0"
+            "string-width": "^3.1.0",
+            "strip-ansi": "^5.2.0",
+            "wrap-ansi": "^5.1.0"
           }
         },
-        "code-point-at": {
-          "version": "1.1.0",
+        "color-convert": {
+          "version": "1.9.3",
+          "bundled": true,
+          "requires": {
+            "color-name": "1.1.3"
+          }
+        },
+        "color-name": {
+          "version": "1.1.3",
           "bundled": true
         },
+        "create-hash": {
+          "version": "1.2.0",
+          "bundled": true,
+          "requires": {
+            "cipher-base": "^1.0.1",
+            "inherits": "^2.0.1",
+            "md5.js": "^1.3.4",
+            "ripemd160": "^2.0.1",
+            "sha.js": "^2.4.0"
+          }
+        },
+        "create-hmac": {
+          "version": "1.1.7",
+          "bundled": true,
+          "requires": {
+            "cipher-base": "^1.0.3",
+            "create-hash": "^1.1.0",
+            "inherits": "^2.0.1",
+            "ripemd160": "^2.0.0",
+            "safe-buffer": "^5.0.1",
+            "sha.js": "^2.4.8"
+          }
+        },
         "cross-spawn": {
-          "version": "5.1.0",
+          "version": "6.0.5",
           "bundled": true,
           "requires": {
-            "lru-cache": "^4.0.1",
+            "nice-try": "^1.0.4",
+            "path-key": "^2.0.1",
+            "semver": "^5.5.0",
             "shebang-command": "^1.2.0",
             "which": "^1.2.9"
           }
@@ -2255,12 +2379,74 @@
           "version": "1.2.0",
           "bundled": true
         },
+        "drbg.js": {
+          "version": "1.0.1",
+          "bundled": true,
+          "requires": {
+            "browserify-aes": "^1.0.6",
+            "create-hash": "^1.1.2",
+            "create-hmac": "^1.1.4"
+          }
+        },
+        "elliptic": {
+          "version": "6.5.0",
+          "bundled": true,
+          "requires": {
+            "bn.js": "^4.4.0",
+            "brorand": "^1.0.1",
+            "hash.js": "^1.0.0",
+            "hmac-drbg": "^1.0.0",
+            "inherits": "^2.0.1",
+            "minimalistic-assert": "^1.0.0",
+            "minimalistic-crypto-utils": "^1.0.0"
+          }
+        },
+        "emoji-regex": {
+          "version": "7.0.3",
+          "bundled": true
+        },
+        "end-of-stream": {
+          "version": "1.4.1",
+          "bundled": true,
+          "requires": {
+            "once": "^1.4.0"
+          }
+        },
+        "ethereumjs-util": {
+          "version": "6.1.0",
+          "bundled": true,
+          "requires": {
+            "bn.js": "^4.11.0",
+            "create-hash": "^1.1.2",
+            "ethjs-util": "0.1.6",
+            "keccak": "^1.0.2",
+            "rlp": "^2.0.0",
+            "safe-buffer": "^5.1.1",
+            "secp256k1": "^3.0.1"
+          }
+        },
+        "ethjs-util": {
+          "version": "0.1.6",
+          "bundled": true,
+          "requires": {
+            "is-hex-prefixed": "1.0.0",
+            "strip-hex-prefix": "1.0.0"
+          }
+        },
+        "evp_bytestokey": {
+          "version": "1.0.3",
+          "bundled": true,
+          "requires": {
+            "md5.js": "^1.3.4",
+            "safe-buffer": "^5.1.1"
+          }
+        },
         "execa": {
-          "version": "0.7.0",
+          "version": "1.0.0",
           "bundled": true,
           "requires": {
-            "cross-spawn": "^5.0.1",
-            "get-stream": "^3.0.0",
+            "cross-spawn": "^6.0.0",
+            "get-stream": "^4.0.0",
             "is-stream": "^1.1.0",
             "npm-run-path": "^2.0.0",
             "p-finally": "^1.0.0",
@@ -2268,29 +2454,69 @@
             "strip-eof": "^1.0.0"
           }
         },
+        "file-uri-to-path": {
+          "version": "1.0.0",
+          "bundled": true
+        },
         "find-up": {
-          "version": "2.1.0",
+          "version": "3.0.0",
           "bundled": true,
           "requires": {
-            "locate-path": "^2.0.0"
+            "locate-path": "^3.0.0"
           }
         },
         "get-caller-file": {
-          "version": "1.0.3",
+          "version": "2.0.5",
           "bundled": true
         },
         "get-stream": {
-          "version": "3.0.0",
+          "version": "4.1.0",
+          "bundled": true,
+          "requires": {
+            "pump": "^3.0.0"
+          }
+        },
+        "hash-base": {
+          "version": "3.0.4",
+          "bundled": true,
+          "requires": {
+            "inherits": "^2.0.1",
+            "safe-buffer": "^5.0.1"
+          }
+        },
+        "hash.js": {
+          "version": "1.1.7",
+          "bundled": true,
+          "requires": {
+            "inherits": "^2.0.3",
+            "minimalistic-assert": "^1.0.1"
+          }
+        },
+        "hmac-drbg": {
+          "version": "1.0.1",
+          "bundled": true,
+          "requires": {
+            "hash.js": "^1.0.3",
+            "minimalistic-assert": "^1.0.0",
+            "minimalistic-crypto-utils": "^1.0.1"
+          }
+        },
+        "inherits": {
+          "version": "2.0.4",
           "bundled": true
         },
         "invert-kv": {
-          "version": "1.0.0",
+          "version": "2.0.0",
           "bundled": true
         },
         "is-fullwidth-code-point": {
           "version": "2.0.0",
           "bundled": true
         },
+        "is-hex-prefixed": {
+          "version": "1.0.0",
+          "bundled": true
+        },
         "is-stream": {
           "version": "1.1.0",
           "bundled": true
@@ -2299,38 +2525,74 @@
           "version": "2.0.0",
           "bundled": true
         },
+        "keccak": {
+          "version": "1.4.0",
+          "bundled": true,
+          "requires": {
+            "bindings": "^1.2.1",
+            "inherits": "^2.0.3",
+            "nan": "^2.2.1",
+            "safe-buffer": "^5.1.0"
+          }
+        },
         "lcid": {
-          "version": "1.0.0",
+          "version": "2.0.0",
           "bundled": true,
           "requires": {
-            "invert-kv": "^1.0.0"
+            "invert-kv": "^2.0.0"
           }
         },
         "locate-path": {
-          "version": "2.0.0",
+          "version": "3.0.0",
           "bundled": true,
           "requires": {
-            "p-locate": "^2.0.0",
+            "p-locate": "^3.0.0",
             "path-exists": "^3.0.0"
           }
         },
-        "lru-cache": {
-          "version": "4.1.4",
+        "map-age-cleaner": {
+          "version": "0.1.3",
+          "bundled": true,
+          "requires": {
+            "p-defer": "^1.0.0"
+          }
+        },
+        "md5.js": {
+          "version": "1.3.5",
           "bundled": true,
           "requires": {
-            "pseudomap": "^1.0.2",
-            "yallist": "^3.0.2"
+            "hash-base": "^3.0.0",
+            "inherits": "^2.0.1",
+            "safe-buffer": "^5.1.2"
           }
         },
         "mem": {
-          "version": "1.1.0",
+          "version": "4.3.0",
           "bundled": true,
           "requires": {
-            "mimic-fn": "^1.0.0"
+            "map-age-cleaner": "^0.1.1",
+            "mimic-fn": "^2.0.0",
+            "p-is-promise": "^2.0.0"
           }
         },
         "mimic-fn": {
-          "version": "1.2.0",
+          "version": "2.1.0",
+          "bundled": true
+        },
+        "minimalistic-assert": {
+          "version": "1.0.1",
+          "bundled": true
+        },
+        "minimalistic-crypto-utils": {
+          "version": "1.0.1",
+          "bundled": true
+        },
+        "nan": {
+          "version": "2.14.0",
+          "bundled": true
+        },
+        "nice-try": {
+          "version": "1.0.5",
           "bundled": true
         },
         "npm-run-path": {
@@ -2340,39 +2602,50 @@
             "path-key": "^2.0.0"
           }
         },
-        "number-is-nan": {
-          "version": "1.0.1",
-          "bundled": true
+        "once": {
+          "version": "1.4.0",
+          "bundled": true,
+          "requires": {
+            "wrappy": "1"
+          }
         },
         "os-locale": {
-          "version": "2.1.0",
+          "version": "3.1.0",
           "bundled": true,
           "requires": {
-            "execa": "^0.7.0",
-            "lcid": "^1.0.0",
-            "mem": "^1.1.0"
+            "execa": "^1.0.0",
+            "lcid": "^2.0.0",
+            "mem": "^4.0.0"
           }
         },
+        "p-defer": {
+          "version": "1.0.0",
+          "bundled": true
+        },
         "p-finally": {
           "version": "1.0.0",
           "bundled": true
         },
+        "p-is-promise": {
+          "version": "2.1.0",
+          "bundled": true
+        },
         "p-limit": {
-          "version": "1.3.0",
+          "version": "2.2.0",
           "bundled": true,
           "requires": {
-            "p-try": "^1.0.0"
+            "p-try": "^2.0.0"
           }
         },
         "p-locate": {
-          "version": "2.0.0",
+          "version": "3.0.0",
           "bundled": true,
           "requires": {
-            "p-limit": "^1.1.0"
+            "p-limit": "^2.0.0"
           }
         },
         "p-try": {
-          "version": "1.0.0",
+          "version": "2.2.0",
           "bundled": true
         },
         "path-exists": {
@@ -2383,22 +2656,72 @@
           "version": "2.0.1",
           "bundled": true
         },
-        "pseudomap": {
-          "version": "1.0.2",
-          "bundled": true
+        "pump": {
+          "version": "3.0.0",
+          "bundled": true,
+          "requires": {
+            "end-of-stream": "^1.1.0",
+            "once": "^1.3.1"
+          }
         },
         "require-directory": {
           "version": "2.1.1",
           "bundled": true
         },
         "require-main-filename": {
-          "version": "1.0.1",
+          "version": "2.0.0",
+          "bundled": true
+        },
+        "ripemd160": {
+          "version": "2.0.2",
+          "bundled": true,
+          "requires": {
+            "hash-base": "^3.0.0",
+            "inherits": "^2.0.1"
+          }
+        },
+        "rlp": {
+          "version": "2.2.3",
+          "bundled": true,
+          "requires": {
+            "bn.js": "^4.11.1",
+            "safe-buffer": "^5.1.1"
+          }
+        },
+        "safe-buffer": {
+          "version": "5.2.0",
+          "bundled": true
+        },
+        "secp256k1": {
+          "version": "3.7.1",
+          "bundled": true,
+          "requires": {
+            "bindings": "^1.5.0",
+            "bip66": "^1.1.5",
+            "bn.js": "^4.11.8",
+            "create-hash": "^1.2.0",
+            "drbg.js": "^1.0.1",
+            "elliptic": "^6.4.1",
+            "nan": "^2.14.0",
+            "safe-buffer": "^5.1.2"
+          }
+        },
+        "semver": {
+          "version": "5.7.0",
           "bundled": true
         },
         "set-blocking": {
           "version": "2.0.0",
           "bundled": true
         },
+        "sha.js": {
+          "version": "2.4.11",
+          "bundled": true,
+          "requires": {
+            "inherits": "^2.0.1",
+            "safe-buffer": "^5.0.1"
+          }
+        },
         "shebang-command": {
           "version": "1.2.0",
           "bundled": true,
@@ -2419,7 +2742,7 @@
           "bundled": true
         },
         "source-map-support": {
-          "version": "0.5.9",
+          "version": "0.5.12",
           "bundled": true,
           "requires": {
             "buffer-from": "^1.0.0",
@@ -2427,24 +2750,32 @@
           }
         },
         "string-width": {
-          "version": "2.1.1",
+          "version": "3.1.0",
           "bundled": true,
           "requires": {
+            "emoji-regex": "^7.0.1",
             "is-fullwidth-code-point": "^2.0.0",
-            "strip-ansi": "^4.0.0"
+            "strip-ansi": "^5.1.0"
           }
         },
         "strip-ansi": {
-          "version": "4.0.0",
+          "version": "5.2.0",
           "bundled": true,
           "requires": {
-            "ansi-regex": "^3.0.0"
+            "ansi-regex": "^4.1.0"
           }
         },
         "strip-eof": {
           "version": "1.0.0",
           "bundled": true
         },
+        "strip-hex-prefix": {
+          "version": "1.0.0",
+          "bundled": true,
+          "requires": {
+            "is-hex-prefixed": "1.0.0"
+          }
+        },
         "which": {
           "version": "1.3.1",
           "bundled": true,
@@ -2457,73 +2788,45 @@
           "bundled": true
         },
         "wrap-ansi": {
-          "version": "2.1.0",
+          "version": "5.1.0",
           "bundled": true,
           "requires": {
-            "string-width": "^1.0.1",
-            "strip-ansi": "^3.0.1"
-          },
-          "dependencies": {
-            "ansi-regex": {
-              "version": "2.1.1",
-              "bundled": true
-            },
-            "is-fullwidth-code-point": {
-              "version": "1.0.0",
-              "bundled": true,
-              "requires": {
-                "number-is-nan": "^1.0.0"
-              }
-            },
-            "string-width": {
-              "version": "1.0.2",
-              "bundled": true,
-              "requires": {
-                "code-point-at": "^1.0.0",
-                "is-fullwidth-code-point": "^1.0.0",
-                "strip-ansi": "^3.0.0"
-              }
-            },
-            "strip-ansi": {
-              "version": "3.0.1",
-              "bundled": true,
-              "requires": {
-                "ansi-regex": "^2.0.0"
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diff --git a/package.json b/package.json
index 16c54ee..16e1632 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
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+    "@ensdomains/ens": "^0.4.0",
     "@ensdomains/resolver": "^0.1.6",
     "eth-ens-namehash": "^2.0.8",
     "ethereum-ens": "^0.7.7",