Created a 'clean window'.
Added new window style to .NET 4.5 project.
Merge branch 'master'
Merge branch 'master'
Fix for titlebar zindex.
Merge branch 'master'
Added Icons and WindowCommands. Fixed a project error.
Patched MetroWindow.cs. CleanWindow dragging now works correctly. Regular MetroWindows work fine as well.
Added a WindowCommand for showing the clean demo. Don't show it automatically.
Merge pull request #516 from Amrykid/metro-clean-window

'Clean' styled Window