add new command get-serial-console

Adds v1.1 command get-serial-console

Change-Id: Id6b1e470088a72409f5609538be72c3cf2288a86
Parial-Implements: blueprint serial-ports
Add support for the server group quotas

Implements: blueprint server-group-quotas
Change-Id: I440d460d227f4447c2b960b6343b8fe1f6cbd3fb
secgroup-create description is not optional

The description field to the Nova API for secgroup
create is not optional. This enforces the supplying
of the description field in novaclient as the Nova
call will fail if it is not supplied.

v3 version does not need to be updated as it was never
changed.

Change-Id: I6fc823990190b935a8e1214efc8c3ac3a0941abf
Closes-Bug: 1367121
Merge "add new command get-serial-console"
Merge "Add support for the server group quotas"
Merge "secgroup-create description is not optional"