master
Add support for backing up the journal inode location in the superblock. E2fsck will automatically save the journal information in the superblock if it is not there already, and will use it if the journal inode appears to be corrupted. ext2fs_add_journal_inode() will also save the backup information, so that new filesystems created by mke2fs and filesystems that have journals added via tune2fs will also have journal location written to the superblock as well. Debugfs's logdump command has been enhanced so that it can use the journal information in the superblock.
Overhaul extended attribute handling. Should now be correct with respect to the latest V2 bestbits ACL code.
tests: clean up test names