GNOME 3.12 Removes Support for MD-RAID Because It Never Really Worked Well

GNOME Disk Utility 3.11 removes support for MD-RAID, supports GTK+ 3.10.0 or later, uses CSD and GtkHeaderBar, media icon (if available), as well as flat list in device tree. The Help, About and Quit menu have been standardized, a forgotten header has been updated, the title of the “Restore Image” file chooser dialog has been capitalized, fixes a warning in the “Restore Disk Image” dialog, updates the “Edit GPT Partition” dialog, and updates various translations.