Work in progress
Merge branch 'luiscubal-idisposable-interfaces' of github.com:mono-soc-2013/NRefactory into luiscubal-idisposable-interfaces
Fixed DoGlobalOperationOn and FindReferences. Finished DisposeMethodOnNonIDisposableTypeIssue for interfaces
Added additional unit test.
Merge pull request #220 from mono-soc-2013/luiscubal-idisposable-interfaces

DisposeMethodInNonIDisposableTypeIssue: Added support for interfaces