Fix bugs & Implement new features
Merge branch 'master' of https://github.com/skonb/ARonJails

Conflicts:
	ActiveRecordOnJails/ActiveRecordOnJails/ARJActiveRecord.h
	ActiveRecordOnJails/ActiveRecordOnJails/ARJActiveRecord.m
	ActiveRecordOnJails/ActiveRecordOnJails/ARJActiveRecordHelper.h
	ActiveRecordOnJails/ActiveRecordOnJails/ARJBelongsToRelation.m
	ActiveRecordOnJails/ActiveRecordOnJails/ARJDatabaseManager.m
	ActiveRecordOnJails/ActiveRecordOnJails/ARJHasManyRelation.m
	ActiveRecordOnJails/ActiveRecordOnJails/ARJHasOneRelation.m