Added forgotten test.
Made ShouldRenderJson return JsonResult.

Partial implementation of #46.
Made ShouldReturnEmptyResult return EmptyResult.

Partial implementation of #46.
Made ShouldGiveHttpStatus return HttpStatusCodeResult.

Partial implementation of #46.
Minor tweaks.
Bumped minor version.
Merge pull request #48 from ByteBlast/master

Implemented #46