Added Fluent Area Action Url Testing, by using namespace.

Warning: Area Controller, must reside in namespace xxx.Areas.{Area} as current methods check namespace of controller to determine area.
Added GenerateUrl inc Fluent tests for Area testing

Edited AreaRegistrationTest to reflect added area route which defaults to Test controller
Added check if Controller is in any subfolder/namespace within Areas.Area Space.
Added Tests to include area sub-directory/namespace tests.

Edited area registration to limit default Test controller registration to Test controller methods.
Added Tests to include area sub-directory/namespace tests.

Edited area registration to limit default Test controller registration to Test controller methods.
Merge branch 'master' of https://github.com/lndcobra/MvcRouteTester.git
Remove NUnit.Framework.Constraint (unused - accident)
Merge pull request #23 from lndcobra/master

Added GeneratUrl for Area testing inc Fluent