Rename existing application object
Move application model obejcts to atlas-model
MOve application test to model
Make application implement identified and sources
Support application description field
Rename copying methods on Application object
Move PrecedenceOrdering to be private under ApplicationAdminController
Mark app slug as deprecated
Return default source status for unknown source
Merge pull request #154 from atlasapi/mbst-6993-applications-endpoints

Mbst 6993 applications endpoints