fixes #22 - Logs a debug statement when a unknown property is encountered.  Binds the known properties as expected.
Merge pull request #23 from gavinhogan/master

This should fix issue #22
minor tidy-up
make travis only build master
Merge branch 'refs/heads/master' into bidirectionality

Conflicts:
	src/groovy/grails/plugin/gson/adapters/GrailsDomainDeserializer.groovy