Enable text wrapping in ToggleSwitch Header

When the Header content is too long to be displayed, wrap to new line.
Merge pull request #1415 from evanwon/patch-1

Enable text wrapping in ToggleSwitch Header
Tell users they shouldn't use BaseMetroDialog
Remove the AccentColorRepro
Remove the Caliburn.Micro .NET 4.5 demo
VS, leave me alone
Merge pull request #1418 from MahApps/remove-crap

Remove things