The charm-helpers project have re-licensed to Apache 2.0
inline with the agreed licensing approach to intefaces,
layers and charms generally.
Resync helpers to bring charmhelpers inline with charm
codebase.
Change-Id: I20f9ea0c108a2e3849c5f9cfa5a074550af0a12f
All OpenStack charms are now directly published to the charm store
on landing; switch Amulet helper to resolve charms using the
charm store rather than bzr branches, removing the lag between
charm changes landing and being available for other charms to
use for testing.
This is also important for new layered charms where the charm must
be build and published prior to being consumable.
Change-Id: I60a0aaaa2b96a665f5083bd67c103d07c9e8e9fc
Ryan Beisner