Changelog

• convert:
• new option --uuid to copy, generate or set a given uuid
• improve output
• mkfs:
• allow to create degenerate raid0 (on 1 device) and raid10 (on 2 devices)
• image:
• improved error messages
• fix some alignment of restored image
• subvol delete: allow to delete by id when path is not resolvable
• check:
• require alignment of nodesize for 64k page systems
• detect and fix invalid block groups
• libbtrfs (deprecated):
• remove most exported symbols, leave only a few that are used by snapper
• no version change (still 0.1)
• remove btrfs-list.h, btrfsck.h
• fixes:
• reset generation of space v1 if v2 is used
• fi us: don't wrongly report missing device size when partition is not readable
• other:
• build: experimental features
• build: better detection of 64bit timestamp support for ext4
• corrupt-block: block group items
• new and updated tests
• refactoring
• experimental features:
• new image dump format, with data