Fixes #6117 - clean usergroup cache

Dependent destroy was missing on through association from user side.
fixes #6116 - search hosts by parent host group and its decendants
fixes #6112 - log/test.log disappears when running under spork
fixes #6091 - menu removal wasn't traversing menu hierarchy
fixes #5652 - run parse_args when calling new_vm for compute profiles
fixes #5708: #nil? is now an allowed method inside of Host and Token jails
templates - sync from community-templates
fixes #4736 - organization edit ui has unselectable environment
Fixes #6191 - pin pry for ruby 1.8 compat
fixes #6121 - made copyright section defaceable
fixes #5879 - minimum of scoped_search 2.7.0 required
fixes #5345 - customizable dashboard
fixes #5129 - Host Group creation may fail if parameter is same name
fixes #5722: VM-based host cloning picks up existing compute attributes
fixes #6234 - fixes sorting on compute resources and subnets
fixes #5832 - org switcher does not collapse when moving mouse diagnally to submenu
fixes #5809 - don't show parent location/organization/hostgroup select box if zero or one location/organization/hostgroup
fixes #5848 - can't search for host with class inherited from config group
fixes #5923 - ptable validation trailing spaces incorrectly allows one space
fixes #5881 - XSS from create/update/destroy notification boxes (CVE-2014-3491)