DisposeMethodInNonIDisposableTypeIssue and tests
DisposeMethodInNonIDisposable: Make fewer unnecessary node visits.
Merge branch 'master' of github.com:icsharpcode/NRefactory into luiscubal-dispose

Conflicts:
	ICSharpCode.NRefactory.CSharp/ICSharpCode.NRefactory.CSharp.csproj
	ICSharpCode.NRefactory.Tests/ICSharpCode.NRefactory.Tests.csproj
Merge pull request #199 from mono-soc-2013/luiscubal-dispose

DisposeMethodInNonIDisposableTypeIssue