use libblkid to get filesystem type
we can now use libblkid to detect exfat
fix restore on mknod
Change-Id: I9fb8b927f81a8cded651e42026beb3d5c252d1e8
libtar - Fix extraction of hardlinks to use the prefix

Change-Id: I116982ceed722364406b99fb08bc6943afa0390a
Merge "use libblkid to get filesystem type we can now use libblkid to detect exfat" into twrp2.4
fixes for fakeflash zips

For some reason fakeflash doesn't like to have superuser/su
in /res, move it to its own subdir in /supersu. This allows
a fakeflash zip built with 'make recoveryzip' to work correctly.

Change-Id: I32e2e0f6dba55281d5c917e931c3ef0034964bcb
Merge remote-tracking branch 'upstream/twrp2.4' into twrp2.4