WIP for Images

*This is a branch containing work in progress

Change-Id: Ic2b154c7bc96cf2026be1b9c832837d647a93695
Merge commit 'refs/changes/13/67013/18' of https://review.openstack.org/stackforge/cloudcafe
Modifications for RPC

* Hack for injecting network to create_server
* Added expected network configuration