fixes #2407 - Add STI to settings model

Also adds some tests for rendering new/missing STI models, and
refactors the old default_settings loader into the new sub-models.
fixes #2430 - undefined method gettext_translation_for_attribute_name
Added rails and dependencies to comp
fixes #2428 - a workaround for an issue with SETTINGS[:libvirt] not being properly initialized in rpm environments
fixes #2433 - fix orchestration respond_to? test to work on ruby 2.0
fixes #2429 - change OpenID storage to be permanent

Also fallback to form login when Signo fails and log a warning.
Make Signo SSO backend unavailable for API.
Added a lot more dependencies to the RHEL6 comp
new top-bar navigation design and a new login page
fixes #2441
Fixes #2439 - Add true to respond_to? calls for initialize_puppetca
Added even more dependencies to the RHEL6 comp
fixes #2378 - added Minitest and other code cleanups
fixes UI errors in trend pages
fixes #2361 empty password does not invalidate compute resource
fixes #2361 do not reset password on test connection.
fixes #2450 - cookie name based on pathname to be able to reuse the js in other pages
Fix finder_needs_type check in sti mixin
intruducing color variable and mixin in the scss files
Fix tests misusing assert and assignment vs. comparison
add SLES and SLED to Suse family