Refactored and fixed AdvancedFriendlyUrlProvider.RemoveExcludedPartsOfPath(...) to not replace /ctl/Category/mid/416 by /ctl/416?Category=mid
Added test case for controlKey "Category"
Merge pull request #165 from janjonas/DNN-5953

Fix DNN-5953: Refactored and fixed AdvancedFriendlyUrlProvider.RemoveExcludedPartsOfPath(...) to not replace /ctl/Category/mid/416 by /ctl/416?Category=mid