Making method signature same as its parent and adding doc comment for params.
Adding codeception framework to composer
Improving System testing documentation
Improving checks when creating a language xml
Merge pull request #245 from infograf768/languagexml

Improving checks when creating a language xml
Merge pull request #240 from Achal-Aggarwal/fix-travis-cs

Making method signature same as its parent and adding doc comment for pa...
Fix travis