Removed old open id gem stuff
Added Google oauth gem
Removed tokens from source
Updated readme
Merge branch 'develop' into google-plus-signin

Conflicts:
	app/views/shared/_menu.html.erb
Removed openID dependency
Merge develop
Added migration to clean the database from old google profiles
Updated schema
Merge pull request #33 from eMergence-by-Design/google-plus-signin

PENDING-CI: Google plus signin