Implemented DelegateParametersAreUnusedIssue
Added missing files
Merge branch 'luiscubal-delegate-unused-parameters' of github.com:mono-soc-2013/NRefactory into luiscubal-delegate-unused-parameters
Fixed bug in DelegateParametersAreUnusedIssue -- attempted to remove parameters even if the end-result was ambiguous.
Merge pull request #260 from mono-soc-2013/luiscubal-delegate-unused-parameters

Implemented DelegateParametersAreUnusedIssue