Made the spc test file name publicly accessible to unit tests (UnitTestHelper)
Added parent class 'ApplicationController' to assist in formatting JSON responses
Implemented a server interface for executing local searches. Changes include:
 - Mapped the appropriate urls to controller actions in UrlMappings
 - Implemented SearchController (and a test for the 'search' action)
 - Wrote skeleton code for StateSpaceController
 - Implemented SearchService