cyclades: Include user/project info in volume API
deploy: Install optional but missing packages

..that snf-* packages do not depend on but deployment requires
(and quick admin install guide mentions).

Signed-off-by: Dimitris Aragiorgis <dimara@grnet.gr>
deploy: Move firefox_cert_override.py to Apache

..and install required python-openssl package.

Signed-off-by: Dimitris Aragiorgis <dimara@grnet.gr>
management: Fix typo
astakos: Remove --all option from user-modify

'--all' was introduced in order to update user quota in bulk; this
functionality has now moved to project-modify. Also remove related
'--exclude' option.
astakos: Rename base to system projects

Rename base projects to system projects in management commands and API.
Update docs and changelog.