fixes #5471 html escape auto-completer values (CVE-2014-0208)
templates - sync from community-templates
fixes #4250 - API v2 - add compute profiles
fixes #5680 - quote searches for config groups containing spaces
fixes #5553: FiltersHelper#search_path returns an empty string for unrecognized resources
Fixes #5637 - Don't raise lease conflicts when reading ad-hoc DHCP leases
fixes #5660 - use with_taxonomy_scope for OS media selection
Fixes #5221: Adds a helper method to allow a model instance to inquire if the instance is authorized for a particular permission.

Model instances can be asked directly if they are authorized for a particular
permission by, for example, calling 'instance.authorized?(:view_model)'. This
abstracts and centralizes some of the repetitiveness of having to instantiate
an authorizer and pass the instance to the 'can?' method as the object of inquiry.
Fixes #5664 - Host filters can use taxonomies

Also disables taxonomy filters on resources that do not support them.