All simplified route definition methods now create final functions as exclusive by default
Added the ability to instruct the engine to continue with the rest of the pipeline after a final function has been execute, by returning a marker type.
Added Tests.WebApi.Owin project so we can test the new final function execute and continue feature
Bumped superscribe package versions in nuspec files, as well as adding a missing dependency on WebApi2 from WebApi.Owin.