Added data project and set up database
Added domain project, set up mappings from DB to domain.
Added test API, enabled NuGet package restore
Added & wired up StructureMap for DI
Set JSON formatting to camelCase
Opened CRUD APIs for Contacts. Has few small bugs, needs fixes
Fixed bugs with numbers and tags in contact add/update commands
Updated Readme
Merge pull request #2 from pileks/pileks-back-end

Pileks back end