Started the mapper implementation

vim .
;
Started mapping components
Fixed some broken components after Swift update in 8.1
More tests passing
More fixes in the mapping module
Implemented some protocol methods for mapping in NSManagedObject
Updated Realm
More changes
Some changes
Updated travis script
Updated travis script
Updated travis script to 8.1
Improved mapping module
Merge branch 'feature/mappingModule' into develop
Updated realm version