autotest/tp-libvirt — pull request #378 by will-Do (2014-11-24 08:57:07+00:00)
Title: virsh.volume: Case extend and update

1. Add 'logical' type pool.
2. Reuse exists func to reduce code redundancy.
3. For 'gluster' pool, need create vol by qemu-img.

Signed-off-by: Yanbing Du