Allow deleting multiple images from shell

Adds nargs to image-delete to allow deleting
multiple images through cli.

Adds shell test for multiple image-delete.
Also makes a small correction in fakes to
correct image id of the second image to 2.

Fixes bug #1173511

Change-Id: I167a97cab75a6df544901e965d2cfa3c10a3958e
Clean up exceptions.from_response

Change-Id: I359a911c0813697f091517de493be403e8c1d8a3
Adds extended status fields to nova list

The nova list command now includes 'Task State' and 'Power State' fields to
bring parity with the dashboard.

	* Add helper function _translate_extended_states()
	to convert extended states to human

Fixes: bug #954750

Change-Id: I564b7f88e9e2524d8e4ffe21a51608c5e3b23d2d
Add setuptools_git-*.egg to .gitignore

Change-Id: I97128363b13414e9037cf54ffc52a3db405b13a1
Merge "Allow deleting multiple images from shell"
Merge "Adds extended status fields to nova list"