Fixed floating values being allowed to be converted to long and int.
Added unit tests for conversions.
Removed logging output when running tests.
Merge commit 'b5a5e66'

Conflicts:
	src/main/java/ch/feuermurmel/json/JsonNumber.java
	src/main/java/ch/feuermurmel/json/JsonObject.java
Reworked tests to use JUnit Parameterized rest runner.