[Blueprint servercloud-w-openstack-charms] OpenStack Charms - 15.07 and 15.10

[James Page]

Blueprint changed by James Page:

Work items changed:
  Work items for ubuntu-15.06:
  Land support for use of leader-election: TODO
  charm-helpers update for liberty/wily support: TODO
+ Switch to using tox for unit test and lint validate (supports move upstream): TODO

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OpenStack Charms - 15.07 and 15.10
https://blueprints.launchpad.net/ubuntu/+spec/servercloud-w-openstack-charms