Fixes #6065 - Update TopbarSweeper to clear cache for other users than User.current

fixes #6375 - fix needed for Rails 3.2.8 only that ensures reference_id on parameter.rb matches the nested object id

Fixes #6606 - Allow deletion of non-admin users if 1 admin

When deleting users, you get an error message if there's only one admin account
even if the users aren't admins.

Fixes #3377 - Add altlinux support

fixes #1646, #3103 - enable cloning and locking of templates

fixes #3601: Use secure websockets if available

Websockets_ssl* settings must be configured with the appropriate
certificates for this to work.

fixes #3664 - support deletion of installation media that's in use

fixes #5197 - Preallocated disk support for oVirt

fixes #4155 - enable host/CR (dis)association via api

Fixes #6532 - permission related api extensions

- usergroups#show lists associated roles
 - listing available resource types
 - filters#show lists associated roles
 - filters#index lists associated roles and permissions and orders the results
 - pagination in permissions#index...