Starting the implementation of the new way to do the upload and crop for logos.
Refactoring of logos. Changed the call methods to accept the new upload version of logos.
Removing the old logos.
Removing old calls after removing old logos.
Fixed some errors launched after removing logos
Merge branch 'bug412' of https://github.com/mconf/mconf-web into branch-v2

Conflicts:
	Gemfile
	app/controllers/logos_controller.rb
	app/helpers/application_helper.rb
	app/helpers/events_helper.rb
	app/models/event.rb
	app/models/space.rb
	app/views/admissions/_invitation.html.erb
	app/views/admissions/index.html.erb
	app/views/spaces/_edit_space.html.erb
	app/views/spaces/_space_thumbnail.html.haml
	app/views/spaces/edit.html.haml
	config/routes.rb
	db/schema.rb
Removed last traces of logo functions
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Remove old and outdated locale files for some languages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.
Rebind all javascript components when a modal opens

Refactored the javascripts a bit to make all components have the same pattern:
an object with a method `bind()`. So now `mconf.Resources.bind()` binds all
elements we need to bind we a page is updated (e.g. when a modal is opened).

Also make sure all events (click, etc) are bound with using namespaces so we
can make sure they are bound only once even if the method they are in is
called several times.
Merge branch 'branch-v2' into issue804-bbbrails1.3.0

Conflicts:
	app/assets/javascripts/app/application/bootstrap.js.coffee
	app/assets/javascripts/app/application/modal.js.coffee
Finish the view "join_options" for user rooms

Several small changes:

- Disable the "go" button while an ajax call is in progress
- Added events to some js components
- Remove the text in the indicators of in-place-edit, show only the icon