Update debian branch, require python-progress dependency.

Update debian branch, require python-progress dependency.
Merge branch 'release-0.8' into debian

Conflicts:
	Changelog
	docs/installation.rst
	docs/man/kamaki.rst
	kamaki/clients/__init__.py
	kamaki/clients/astakos/__init__.py
	kamaki/clients/commissioning_client.py
	kamaki/clients/connection/__init__.py
	kamaki/clients/connection/kamakicon.py
	kamaki/clients/pithos/__init__.py
	kamaki/clients/quotaholder/__init__.py
	kamaki/clients/utils/__init__.py
	setup.py
	version