Version bump

- bump to 2.2.0dev
Fix references to Zend/Validator/File/UploadFile
Merge pull request #614 from cgmartin/fix/upload-file-validator

Fix references to Zend/Validator/File/UploadFile
Update docs/languages/en/modules/zend.mvc.send-response-event.rst

minor typos
MVC-Routing: fixed an example
Merge branch 'feature/zend.escaper' of https://github.com/robertbasic/zf2-documentation into robertbasic-feature/zend.escaper
Removed the Advanced examples from TOC
Merge branch 'robertbasic-feature/zend.escaper'
Merged resolved
Merge pull request #615 from Ore4444/patch-68

Update docs/languages/en/modules/zend.mvc.send-response-event.rst
Merge pull request #616 from Ore4444/patch-69

MVC-Routing: fixed an example
Update docs/languages/en/modules/zend.form.file-upload.rst

Grammar fix. Change note to warning and remove TODO.
Merge pull request #617 from cgmartin/patch-1

Update docs/languages/en/modules/zend.form.file-upload.rst
Move navigation view helpers to navigation section
Remove navigation helpers from view section
Merge pull request #618 from froschdesign/master

Move navigation view helpers to navigation section
Update docs/languages/en/modules/zend.db.table-gateway.rst

Corrected spelling
Merge pull request #619 from diemuzi/patch-1

Update docs/languages/en/modules/zend.db.table-gateway.rst
Fixed sintax error!
Semantic error fixed