Merge pull request #31 from mgiustiniani/master

Added Italian Translation
Update CollectionUpload docs
Disable HTML5 validation for CollectionUpload widget, related #15
Update DateTimePickerType.php

Fixes #33
Collection upload fixes and Novalidate extension
Add doc for Novalidate extension
Fix boolean => bool
Revert maxFileSize option
Add jquery.fileupload-validate to assetic template
Fix translation keys
Add image processing js
Fix sortable behaviour
Add minified version for previous fix
Fix allowed option types
Fix 'previewMaxWidth' option
Fix loadImageFileTypes option
Fix widget options
Fix default options
Rearrange blueimp assets
Add license info