MahApps/MahApps.Metro — pull request #1395 by punker76 (2014-06-04 14:57:50+00:00)
Title: fix ComboBox CanContentScroll usage

- set default to false for CanContentScroll
- set CanContentScroll to true on virtualization (except with .NET 4 if IsGrouping true)

Closes #1309