Removed exception thrown when new properties are added on the server

Refactored the code to use an ObjectMapper that ignores unkown properties, so the library keeps working even if new properties are added on the server side for the used model classes.
In the test class, an ObjectMapper that fails when encountering unmapped properties was kept, in order to be alerted when the api changes without breaking users of the current version.

Full Changelog: 0.0.2...0.0.3

0.0.2

Updated pom for version 0.0.2

Test release

test