use Regex.Replace instead of string.Replace
add UDC tracking for WPF designer and WinForms designer
add issue tracking to SuppressIssueContextAction, remove entry for suppressing an issue once and make it default
Remove separate project template repositories for NuGet packages.

Install NuGet packages in project templates from the NuGet
repositories configured and used by the Manage Packages dialog.
Remove NuGet packages from installer.
fix bug in InsertWithCursor: should not scroll to top after start of InsertWithCursor-mode
Add tests for EnvDTE.CodeInterface.AddFunction()
Add tests for EnvDTE.CodeClass.AddVariable()
Remove obsolete tests.
Fix NullReferenceException in CaretReferenceHighlightRenderer.ColorizeMatch().
Fix file resolution when running XSLTs.
Add IOutputPad.GetOrCreateCategory()
Fix 'InvalidOperationException: Sequence contains no elements' in CaretReferenceHighlightRenderer.Draw
Merge branch 'master' of https://github.com/ddur/SharpDevelop into solution-level-nuget-packages
Reformat code.