Force the creation of btrfs filesystem in case the partition already contains filesystem.
Add AppStream metadata.
Fix XML
SVN_SILENT made messages (after extraction)
SVN_SILENT made messages (after extraction)
SVN_SILENT made messages (after extraction)
SVN_SILENT made messages (after extraction)
Remove contact email of Volker Lanz.
Merge branch 'master' into frameworks

Conflicts:
	src/fs/btrfs.cpp
	src/plugins/dummy/dummybackend.cpp
	src/plugins/libparted/libpartedbackend.cpp
	src/util/helpers.cpp
Fix build with udisks1.