Also remove tests/charm-helpers if present, in favor of the pip-installed charm-helpers. Change-Id: If395bcf3f24c350c85ca0c4e169903f7ab38ce46
Change-Id: Ide6ee5ebf067dde8fc4118f371a3d759030102c0
Get each charm up to date with lp:charm-helpers for release testing. Change-Id: I227cdb94fd77d76cbd4071c9126ee3743b6a4f47