Change UReportApi.ureporters.get to return null if the user is not found
Remove the unused UReportApi.ureporters.is_registered
Rebuild
Fix app test stub after AppTester method change: AppTester.check.state -> AppTester.check.user.state (thanks @hodgestar)
Merge branch 'feature/issue-15-ureportapi-ureporter-get-should-return-null-if-the-user-is-not-found' into develop
Merge branch 'develop' into feature/issue-16-ureportapi-should-accept-auth-params

Conflicts:
	test/api.test.js
Rebuild