fixes #8277 - upgrade rails to 3.2.20
fixes #8302 - only return active images for openstack compute resources
Fixes #7462 - new UI for network interfaces
Fixes #7369 - External user groups update on login
Fixes #8337 - reworded oVirt template help text
Bug #7619 - [zh_CN] Localized string broken for Loading page
fixes #8233 - better HTML formatting for summary email