Fixes some issues with logout and layout.
add twitter feed
add subscription creation
Added optional authentication to CyberCoach.create.
This is needed for subscription/entry creation in issue #32.
Fixed Cybercoaches strange PUT/POST and xml_root issue.
Issue: #32
fix variable name
Fixed a little mistake concerning the @xml_root_name.
Issue: #32
Merge branch 'fix/cybercoach' of github.com:ASE-2014/spoodle into fix/cybercoach

Conflicts:
	app/models/cybercoach_resource.rb
merge fix/cybercoach
Merge branch 'fix/cybercoach' into feature/entry
add cybercoach sport subscription and entry
EventDatas creation with separated view/controller should work now.
An EventData-Object can be deleted via the events#show view.
EventDatas are updatable too.
Starting integration of kml-doc with EventData. Still need to move
new/edit to the EventData views and adjust the controllers accordingly.
It should be possible now to add documents via EventData#new and
EventData#edit.
Some fixes and some cleanup.
Removed the nested EventData stuff in Events#edit.
Added partials for numeric attributes and added a way to specify units.
Added durations.