Add derivative encoding profile search
Refactored
Small changes to refactor
Added messages to Derivative#errors, changed reporting, added but left commented out audio validation
Only show workflow progress to users with edit access
Delete existing derivatives of the same quality as the newly created
Raise exception if processing is already underway when calling #process
Refactor Derivative.create_from_master_file to populate both rtmp and hls stream details at the same time
Remove pry/debugger from test group
Move pry/debugger gems from :development to [:development,:test]. Fix delayed_job start issue on Travis.
Fix failing tests and some deprecation warnings.
Merge pull request #408 from avalonmediasystem/feature/compare-encoding-profile-rebased

Feature/compare encoding profile rebased