Fix element miss in client request body

Currently the client sends a request with wrong element name
'os-multiple-create:reservation_id' in the body.
The correct element should be 'os-multiple-create:return_reservation_id'.
The information can be got in this website.
https://wiki.openstack.org/wiki/NovaAPIv2tov3

Change-Id: I7d2f006ef6dbbcd6b41c8adbeee0c0e048d35448
Closes-Bug: #1281342
Re-add install_venv_common to openstack-common.conf

Mistakenly removed it in e0272b0578d2a4f5bd75e68baee1b56f49931266.
Was thrown off by the warning saying module not found, the module is
found on the third try (found in tools).

Change-Id: Iaf5a7ba0259d352cb824b2cdb22291ffb7883efc
Allow user ID for authentication

In Keystone V3 user names are no longer necessarily unique
accross domains.

A user can still authenticate a user in the non default
domain via the V2 API providng they use IDs instead of names.

Tenant_ID is already supported, this change adds support
for user ID

Change-Id: I36ba75f3e67c8cdb959e31923d5e557414ab6f9b
Show Exception Name in Shell Output

Currently, when the CLI encounters an exception, only the exception
message is shown.  However, the name of the exception can be quite
informative as well.

For instance, an error message might read "Cannot do xyz", which
simply indicates the operation was unsucessful.  However, the attached
exception name (HTTPNotImplemented, for instance) indicates the
*reason* that the call was unsuccessful.

Change-Id: I0298477bd9d40d98c95bb797c68c47dbc952b345
Print a useful message for unknown server errors

If a server error is returned that has an unknown code, novaclient will
end up printing something similar to:

ClientException: <attribute 'message' of 'exceptions.BaseException' objects>

Setting a message for ClientException will ensure that something more
useful than that is printed.

Change-Id: I43a2a33017f9a5c1b79d7fd8af4153e91d296f7b
Closes-bug: 1295293
Correct the help sting of volume-type-delete

Change-Id: I10b1bd6d42e4085dc73572f05ed893385ca3e139
Merge "Re-add install_venv_common to openstack-common.conf"
Merge "Fix element miss in client request body"
Merge "Allow user ID for authentication"
Merge "Correct the help sting of volume-type-delete"
Merge "Show Exception Name in Shell Output"
Merge "Print a useful message for unknown server errors"