Merge pull request #13 from phreenet/jds-mapannotations

First Cut Map Annotations
Merge pull request #14 from phreenet/jds-mapannotations

Project maintenance
Move Core Data Model Mapping
Creating Data Model	Entity and Attributes
Changing articleDistance attribute to Integer 16 so that it can be referenced from an object as an NSNumber.
Creating Core Data Model Objects.
Silly typo.
Added Warning Message.
Merge pull request #15 from phreenet/jds-CoreDataImpl-Run1

Implemented Core Data Skeleton For Testing