Advanced options added (auto_start <video, audio>) and tested.

#refs 1204
Problem with Space.stub!
Add hint for Site#domain
Advanced Options added and tested.

#refs 1204
Shibboleth Always new account flag added.

#refs 1284
Option to force shibboleth to always create a new account added.

#refs 1284
Option to force shibboleth to always create a new account added and tested.

#refs 1284
More tests were made to ensure the correct redirects after a user log in.

refs #1231
A few more variables in the css files, easier to customize

Pulled from work at mconf-ufrgs/mconf-web@master
Merge pull request #27 from gmiotto/branch-v2-1204-advanced-options

refs #1204
Update bigbluebutton_rails after PR #27

refs #1204
Update strings for advanced options in meetings, after PR #27

refs #1204
Merge branch 'branch-v2-1284-shibboleth-always-new-account' of git://github.com/gmiotto/mconf-web into gmiotto-branch-v2-1284-shibboleth-always-new-account

Conflicts:
	db/schema.rb
Review of feature shib_always_new_account, PR #28

Biggest changes in the tests for ShibbolethController. All the rest is just
a general review.

refs 1284
Merge pull request #28 from gmiotto/branch-v2-1284-shibboleth-always-new-account

refs #1284
Merge remote-tracking branch 'origin/branch-v2' into branch-v2-refactor-emails

Conflicts:
	db/schema.rb