updated gemfile
Merge branch 'dev' of https://github.com/TranscendComputing/CloudMux into dev

Conflicts:
	Gemfile.lock
Reverted to old Gemfile.lock.  `bundle updated` caused issues with spec tests
Added constraints to mongoid (3.1.5) and representable (1.7.1) as these were causing breaking changes in tests
Added function to iterate through default images and check if requested image is there.
Implemented policy restriction of user default images.
Added admin check when displaying images availabe for use.
fix indenting
revising model and representer for queue items
app_spec_helper can be used outside spec directory
change tests to pending, make tests for defaults
Merge branch 'dev' of https://github.com/TranscendComputing/CloudMux into dev
move to pending tests
Added Admin authorization check when trying to add or delete a new cloud account.
moving most of queue item spec tests out of pending
Implementation to allow only the admin to add/delete a new cloud or service.
Refactoring to increase code quality.
LDAP configuration and gems
Merge branch 'dev' of https://github.com/TranscendComputing/CloudMux into dev
queue_item initialize actually works