Fixed bug in #webconference find method.
Now users are find by their userID.

#refs 721
Attempt to test #webconference method.
(not working properly).
Fix matching of attendees in SpacesController#webconference

And the missing tests.

refs #721
Merge branch 'master' into gmiotto:branch-v2-721-use-parameter-id

Conflicts:
	app/controllers/spaces_controller.rb
Improve the list of attendees in a space's webconf room

Just made it look better and with more information.

refs #721
Merge PR #34 from 'gmiotto:branch-v2-721-use-parameter-id'