Extract IsPlatformTarget32BitOrAnyCPU into an extension method.

Closes #274
Disable auto-formatting by default.
If MSBuild 12.0 is installed, use it for all .NET 4.x projects.
Fix creation of dummy file in debugger dot completion.
Update README.md
Merge pull request #462 from OpenSharp/master

Fixed click on tools in README.md
Update README.md

Fix link to Windows 8 SDK.
DataRow and Groupheader
Merge branch 'master' of github.com:icsharpcode/SharpDevelop
Ignore broken Test
Fix #453: Solution FormatterSettings are not persisted properly
Some renames, broken UnitTest is working again
Merge branch 'master' of github.com:icsharpcode/SharpDevelop
Windows SDK 7.1 is still necessary
Fix #466: Add support for targeting .NET 4.5.2
Fix #458: Shortcut for 'Reformat code' breaks the '@' symbol on Turkish keyboard layouts. Shortcut has been changed to Ctrl+Shift+I.
Added tests for undo/redo operations on implicit and explicit lists.
Fixed bug where explicit collection was not handled correctly when resetting a XamlProperty.
Fix #356: Search and Replace dialog window does not scale with DPI setting
Fix a couple of high-DPI problems.
Don't catch ProjectLoadException in ProjectDescriptor.

The whole template creation process (ProjectTemplate.CreateProjects) should throw the exception so that exception details are available to the caller.
This fixes displaying the ToolNotFoundDialog when creating a WiX project without installing the WiX toolset.