Adding institutions
Managing institutions
See institution users
Tests for institution and new methods
Better institution users pages
Port invitesifrom tokeninput to new select2
Tokeninput for institutions on register screen
Using select2 for signup institution form
Tests for correct duplicate institution
Interface for 'correct_duplicate' institution
New screen for editing institution permissions and setting admin rights
Added institution to a space and setting it via space creator
More tests WIP
New tests for InstitutionsController
Institutional admins can manage users and spaces in their institution
Added buttons and permissions for admins to approve users
User permissions on manage screen, and details on profile
Sending a message to the institutional admins when user register

Also a more prominent visual notification of unapproved users for the
admins.
Some translations for the new institutions stuff
Remove possibility of entering a new institution name when registering refs #952