* Add symbols file for libudisks2-0. * debian/patches/dosfslabel.patch: Switch to dosfslabel to handle VFAT labels since we already require dosfstools for mkfs.vfat and dosfslabel works just as well as mlabel nowadays. * debian/control: Drop recommends on mtools. * debian/tests/control: Switch from mtools to dosfstools. * debian/control: Suggest exfat-utils for exFAT support. * debian/control: Suggest btrfs-tools for btrfs support.