Create ResellerAdmin role in keystone

Quoting the swift doc:

 Users with the Keystone role defined in reseller_admin_role
 (ResellerAdmin by default) can operate on any account. The auth system
 sets the request environ reseller_request to True if a request is
 coming from an user with this role. This can be used by other
 middlewares.

As this role is not used by any other OpenStack component, it makes
sense to create that role here, and not in the keystone cookbook.
Merge pull request #95 from vuntz/ResellerAdmin-role

Create ResellerAdmin role in keystone
fix for fixnum in case of single zone
[NavMenu] Don't open in new tab/window

All other barclamps open in the same tab/window, so we should be
consistent here. General rule is that if it's in the same domain, don't
open a new tab/window.
Merge pull request #99 from jamestyj/release/pebbles/master-same-tab

[NavMenu] Don't open in new tab/window
Merge pull request #98 from MirantisDellCrowbar/bug/DCB-128/pebbles/master

fix for fixnum in case of single zone
Use python-swift3 on SUSE instead of swift-plugin-s3
Merge pull request #103 from saschpe/release/pebbles/master-s3-suse

Use python-swift3 on SUSE instead of swift-plugin-s3
Merge pull request #13 from crowbar/release/pebbles/master

pull changes from dell