DataManger - Fallback Strategy. AGJS-86
DataManager - DataManager Core - Need the ability to config Arrays that are passed in
DataManager - Added Tests to show fallbacks
Datamanager - Remove DataManagerCore - No Need for the abstraction
Datamanager - Remove DataManagerCore from tests
Datamanager -Build - Remove references to datamanager.core from Grunt
DataManager Tests - Dynamic fallback tests
Merge branch 'pr/68'

closes #68