simple implementation of disk quotas using loop devices
use go for removing entry from fstab
update /etc/mtab on remove
simple implementation of disk quotas using loop devices
use go for removing entry from fstab
update /etc/mtab on remove
Merge branch 'diskquota' of https://github.com/tutumcloud/docker into diskquota

Conflicts:
	daemon/graphdriver/aufs/aufs.go
added more error logging
Merge branch 'diskquota' into v1.0.0-tutum