Adds a --show option to the image-create subcommand

Prints info about the new image when --show is used with the
image-create subcommand.

Change-Id: Id1fba67df9ff86cb1bbda3e241d1d03e01afbe2c
Closes-Bug: 1248128
Fix docstring on novaclient

Something like this:

1. Modify "`Image` to add metadata to" to ""`Image` to delete metadata" on
delete_meta()
2. Modify "The security group to delete" to "The security group to update"
on update()
3. Remove the "password" from the description on update()

Change-Id: I0120d84cc263d4eb58b692a5eb6f20ca0ef8264d
Closes-Bug: #1258461
Remove the release.rst file

It has not been updated in a long time and does not seem to be used
Closes-Bug: #1257295

Change-Id: Ie798cc5e6c64db6afcaf22102c74e8be12d3c6a2
Updated from global requirements

Change-Id: I071601a07d74711828dc961b646dc066262698da
Updates tox.ini to use new features

tox 1.6 allows us to skip the sdist step, which
is slow. This does that.
It also allows us to override the install line.
In this case, it's important as it allows us to
stop getting pre-release software we were not
asking for.

Original patch by Monty Taylor, talked about here:
http://lists.openstack.org/pipermail/openstack-dev/2013-September/015495.html

Change-Id: Iddf85d33b57f256d72756b516c23492e9600bedc
Enables E711,E721,E712 pep8 rules

Updates tox.ini to reduce ignored rules.

Updates novaclient/v1_1/shell.py and
novaclient/v3/shell.py for E712 violation.

Change-Id: Ibfd6a4ed19835e65cc9e27873699c31a801e99a8
Merge "Adds a --show option to the image-create subcommand"
Merge "Fix docstring on novaclient"
Merge "Enables E711,E721,E712 pep8 rules"
Merge "Remove the release.rst file"