CC-5333 : Rebroadcast Shows are not created

redefining isRecorded and isRebroadcast, these methods should not rely on already created show instances.
Merge branch 'CC-5333-rebroadcast-not-created' into 2.5.x

Conflicts:
	airtime_mvc/application/services/ShowService.php
CC-5334 : Localize Ryerson History Feature
CC-5334 : Localize Ryerson History Feature
CC-5334 : Localize Ryerson History Feature

crlf