Up common depends to 0.3 series

cookbook-openstack-compute is dependent on the
0.3 openstack-common series already, so if you
try to put, say, a Berksfile together that pulls
in both compute and block-storage, you get an
incompatible dependency. When one cookbook upgrades
its dependency on a new version of the common lib,
all the other cookbooks need to change.

Change-Id: I45df927f0592d267c4da3343e9ccdf42f0410ca7
Removed db recipe

The db recipe have been removed. It is up to the operator to
setup the database, users, and grants before deploying openstack.
It has been moved to the `openstack-db` recipe in the
`openstack-ops-database` wrapper cookbook.

Change-Id: Ic9467b2473b9c5eea6dd4f74c9d5f83f47e86814