Small fixes and reorganization after 64dd42e

Moved some methods to different files and removed things that have been
previously removed but were re-added mistankenly in the merge.
Remove old and outdated locale files for some languages

Removing 'fr', 'de' and 'es', languages that were available initially in vcc
but were never updated and are now way behind the other languages and are only
a burden in the development.

Should we get these languages properly updated in the future then they will be
added back to the application.
Update the link to Mconf-Web's wiki localization page

It's now on GitHub.