Front end slice complete

Created route, controller, service and view for requesting
Echo from the Web API.
Unit test for echo service
Moved web api url into angular constants
Added simple unit test for echo controller
Added service and data layers

Added DI using Autofac
Added simple logging to database via PetaPoco when Echo is called
Merge pull request #2 from lukeDrinksCoffee/thin-vertical-slice

Thin vertical slice

Completed a vertical slice that touches on all layers from web UI through to SQL database.