Change event routes in core bundle
Amends 5eca2ed

Avoid conflicts with event edit routes
Add event form
Amends 197114c
Change mopa forms config
Prevent horizontal resizing of text areas
Add cascade persistence for video tags
Amends 38c12fe
Rename js in admin bundle

Uniformisation of names
Add datepicker javascripts
Add date picker styles
Add properties Edited and Encoded to video entity
Amends 7d1372c and 429a178
Add edited/encoded condition in the video controller

Redirection based on user status: NXmen are sent to the video add form
page, other users to a 404 error.
Add Edited lines to datafixtures
Rename event view dependencies
Amends 3f1559f
Add tag repository
Add tag auto-completion
Amends c4ed928
Remove datepicker border
Add date invalid message
Amends 7d3e149
Add poster upload
Amends b4860cb
Add custom file input
Amends eb3de12

When javascript is enabled, the standard input button is replaced by
something less ugly.
Add delete buttons to events and videos
Minor correction to event list js