Revert "Add evaluation of --force parameter when creating snapshots"

This reverts commit 854740c4c793444c955180e7c0c96977e3e06c56

What we should've caught here is that the args actually passes in a Bool, which then fails the .lower().

Also, if we want to do things like check for strings representing bools we should use the utils.bool_from_str() method rather than write it inline like this.
Merge "Revert "Add evaluation of --force parameter when creating snapshots""
Merge "Remove locals() from cinder client code base"
Provide cinder CLI man page.

Provide basic but hopefully useful man page.

shell.rst was merged into and replaced by the man page in HTML docs.

pbr is used to determine version.

Docs copyright was changed to more accurate "OpenStack Contributors".

Fixes: bug 1206968
Implements: blueprint clients-man-pages
Change-Id: Iedd7b4b161ced564833fd9433762b87a4c1a374d
Sync with global requirements

Change-Id: Iccc824fef7dc7ae5675d6528a1ea33566e5f7eef
Merge "Sync with global requirements"
Add a couple more things to index before release

Most of the new features are in and oslo req's are
synched, making the cut off here and getting a new
client version pushed up to PyPi.

Change-Id: If208b2341db06b438851d7b2aaab541efc79ea35