Fix up regression tester

* Clean up to support pydoc
* Support -h
* Make it actually work
* Improve docstrings
* Add copyright

Change-Id: I977df71e8213e39e9eebf9cc56b2dd7625959870
Support FlatDHCP network for VMware Hyper.

fix bug #1171783

Change-Id: Ibb75c8e3174283f0f5e94bacfd61ee93e8bd6227
Fix missing kernel output via VNC/Spice on boot

Bug 1164021

Use both ttys0 and tty0 as console options to the kernel during
boot.

Change-Id: I0365ff7cad021fb6ca551651d00d58297087e95e
Fixes race condition of deleting floating ip

Fixes bug #1172599
reproduce steps:
1. create an instance
2. get a floating ip from pool
3. associate the ip to instance created at step 1
4. delete the instance and the ip at a very little interval

reason may be that:
1. the action of delete ip find the ip is associated to a fixed ip at
   first(at api level)
2. and then the fixed ip is released when the instance is deleted
3. so nova-network manager findes this issue and raises
   exception.FloatingIpNotAssociated(address=floating_address)

Change-Id: I253d0b240451e8a728532639e9857894f6fc6870
Add missing snapshot image properties for VMware Hyper.

Fix bug #1174199

Change-Id: I50929ed2e66052a37bb5a94cd3863baaebda1e28
Merge "Add missing snapshot image properties for VMware Hyper."
Merge "Support FlatDHCP network for VMware Hyper."
Merge "Fix missing kernel output via VNC/Spice on boot"
Merge "Fixes race condition of deleting floating ip"
Merge "Fix up regression tester"