tvOS, fixes #29, bump 2.5.0

Author: tidwall

SwiftWebSocket.podspec

@@ -1,17 +1,16 @@
 Pod::Spec.new do |s|
-  s.name                  = "SwiftWebSocket"
-  s.version               = "2.4.4"
-  s.summary               = "A high performance WebSocket client library for Swift."
-  s.homepage              = "https://github.com/tidwall/SwiftWebSocket"
-  s.license               = { :type => "Attribution License", :file => "LICENSE" }
-  s.source                = { :git => "https://github.com/tidwall/SwiftWebSocket.git", :tag => "2.4.4" }
-  s.authors               = { 'Josh Baker' => 'joshbaker77@gmail.com' }
-  s.social_media_url      = "https://twitter.com/tidwall"
-  s.ios.platform          = :ios, '8.0'
-  s.ios.deployment_target = "8.0"
-  s.osx.platform          = :osx, '10.9'
-  s.osx.deployment_target = "10.9"
-  s.source_files          = "Source/*.swift"
-  s.requires_arc          = true
-  s.libraries             = 'z'
+  s.name                   = "SwiftWebSocket"
+  s.version                = "2.5.0"
+  s.summary                = "A high performance WebSocket client library for Swift."
+  s.homepage               = "https://github.com/tidwall/SwiftWebSocket"
+  s.license                = { :type => "Attribution License", :file => "LICENSE" }
+  s.source                 = { :git => "https://github.com/tidwall/SwiftWebSocket.git", :tag => "2.5.0" }
+  s.authors                = { 'Josh Baker' => 'joshbaker77@gmail.com' }
+  s.social_media_url       = "https://twitter.com/tidwall"
+  s.ios.deployment_target  = "8.0"
+  s.osx.deployment_target  = "10.9"
+  s.tvos.deployment_target = "9.0"
+  s.source_files           = "Source/*.swift"
+  s.requires_arc           = true
+  s.libraries              = 'z'
 end