Merge v1_1's base module into main base module

This class was forked from novaclient.base when adding v1.1 support and
and because v1.0 is no longer supported it can be merged again.

blueprint: improve-block-device-handling

Change-Id: I3113eff522a9dc280f48053001afa9e1a0cad3e3
Fix the help text process and the generated wrong help

The wrong help text of bash-completion is generated by the process of
choosing first line from the source code comment. We should get the all
help text from the source code comment, and use it.

So this commit removes this unnecessary process, and also fix the
README.rst for proper help text.

Fixes bug 1206005

Change-Id: Id4f5b6a7722197f09eb366ba8f3e643e1af91805
Fix net-id metavar for interface-attach

The metavariable for net-id was incorrectly set to `fixed_ip`.
This commit correctly sets the metavar to `net_id`.

Change-Id: I9bfb442af99848cf43d1f3b78967b785506ac54f
Add user quota client API support

    Implements blueprint user-quota-related-client-api

    This patch adds user arguments to the following subcommands:
        * quota-show
        * quota-update
        * quota-delete

Change-Id: I6556de366a758f7550e9b26357f231666caae419
Fixing host-action on V2

Changed host-actions to GET from POST for reboot, startup
and shutdown, as per nova-api reference documentation.

Change-Id: I863b75960b2e427fd9384a336727132ca3c130c6
Fixes: bug #1206425
Merge "Merge v1_1's base module into main base module"
Merge "Fix the help text process and the generated wrong help"
Merge "Fix net-id metavar for interface-attach"
Merge "Fixing host-action on V2"