Adding support for AoE block storage SANs.
Adding support for AoE block storage SANs.

Adding support for AoE (ATA over Ethernet) block storage SANs.
AoE initiator driver is supported on all Linux initiators
(released under GPL), ATA over Ethernet (AoE) Linux driver
for all 3.x and 2.6 kernels.

Implements blueprint libvirt-aoe

   - Fix (minor) Redundant exception caching

Change-Id: I00de13eb2d4bd1105b9eb68f1465825414e2d5d7

n0ano/gantt,n0ano/gantt