Downgraded required version of WebOb to 1.0.8.
Downgraded required version of WebOb to 1.0.8.

 * Maintaining version parity with other OpenStack projects is
   essential to packaging efforts and shared installation (devstack).
 * fixes bug 950374

Change-Id: I9b16f29a3641df7063ec80bc86b03b4857776b42

gkotton/vmware-nsx,gkotton/vmware-nsx