Included ongr-strict-standart to composer.json
Made style corrections
Added ongr-strict-standard check in travis.yml
Updated travis.yml
Merge pull request #14 from gimikus/psr-strict-addition

Psr strict addition
Added Documents
Added missing setters and getters to Documents
Changes Category setChild method usage
Corrected depended on public fields classes.
Standartizated documents fields
Documents refactored to Traits and standardized
Corrected bundle to use new Document Traits.
Tests for traits added.
Bool attributes naming changed.
Added constant for category root id
Ongr strict standart version changed in composer.json
Removed junit rom phpunit.xml.dist.
Merge branch 'move-documents' of github.com:gimikus/ContentBundle into move-documents
Ongr strict standard version changed
Changed bool properties naming