php linter added
travis: PHP 5.6 added
Removed Id from EnittyTranslation fixure.
Added Id to Translation
Added return .
Merge pull request #158 from kuczek/fix/154-mapping-id-in-translation

Removed Id from EnittyTranslation fixture.
Merge pull request #148 from TomasVotruba/linter

travis - PHP 5.6 added, linter added
Merge pull request #160 from kuczek/fix/returns-this

Return $this where it was not added.
Merge pull request #1 from KnpLabs/master

update