Mavrothal woof ce testing

filemnt: 
Code cleanup for further things:

1)    Want to add .sqfs and .squashfs ( ubuntu ) extensions - and what was it with udf ?
1.1) Change the if tests for filesystems into case lines

2)    Want to ease the ugly kernelversion code

But currently on slacko64:
stat: cannot stat ‘/initrd/initrd/mnt/tmpfs/puppy_slacko64_5.8.8.sfs’: No such file or directory

needs something like test -e "$MNTDIMG_DEV_INODE" || continue

I remember truncated output of losetup, 
probably because long filenames were reduced to 32bit strings ??