[Unionfs] squashfs and cramfs tests

[Erez Zadok]

Just wanted to report to everyone that we've tested the latest unionfs
release for 2.6.22 and 2.6.21 using squashfs and cramfs.  We tried them as
the leftmost branch, sometimes as the 2-3 left branches, and where the
rightmost branch was either ext2 or tmpfs (a combination of squashfs+tmpfs
is popular on live-cds).

We're happy to report not a single problem was discovered.

Cheers,
Erez.