Fixes #835
Merge pull request #840 from Amrykid/clean-flyouts

Fixes the issue of flyouts not working with the CleanWindow style
Use "Unwrap" for chained tasks
Merge branch 'unwrap-tasks'
Merge branch 'master' of https://github.com/MahApps/MahApps.Metro
This kept bugging me
removed title from parameters where unnecessary
Merge pull request #842 from thoemmi/better-dialog-api

Removed title parameter from ShowMetroDialogAsync
Remove the Unwrap here because it doesn't work for whatever reason