Add files for Zend\Escaper documentation
Written escaper introduction
Written TOO chapter
Written about configuration
try to explain a bit how the escaper works
Written about escaping HTML
written about escaping in the html attribute context
minor tweaks
written about escaping in the javascript context
@padraic said it needs more words. I added more words.
written about CSS escaping
written about URL escaping
[2.0.7] bump version
Merge branch 'develop'
[2.1.0] version bump
Version bump

- Set to 2.1.1dev
Fix references to Zend/Validator/File/UploadFile
Merge pull request #614 from cgmartin/fix/upload-file-validator

Fix references to Zend/Validator/File/UploadFile
Merge branch 'feature/zend.escaper' of https://github.com/robertbasic/zf2-documentation into robertbasic-feature/zend.escaper
Removed the Advanced examples from TOC