Updated Experiment -> User Sharing page to ignore authentication method.
Merge branch 'mysql' into cas

* mysql:
  Updated groups script.
  updated groups script
  updated groups script.
  added default groups initialisation script.
Revert to django 1.5.1
Re-implement change to Django 1.5.5.
Updated compare package version.
Updated package compare == 0.2b
Removed compare package version.
removed compare package.
Add compare back in.
set setuptools version.
Updated setuptools version.
Updated buildout config.
Fix syntax error.
update setuptools to version 5.0
fix settings_change bugs.
Fixed User Sharing permission page to ignore authentication method.