Set default branch for git review/gerrit. Switch amulet tests to stable. Switch zaza bundles to stable charms. Switch to using stable charm-helpers branch. Change-Id: Ibd4e449ecedb00faeedc6f8f33177f24ca188f9d
Set default branch for git review/gerrit. Switch amulet tests to stable. Switch zaza bundles to stable charms. Switch to using stable charm-helpers branch. Change-Id: Ibd4e449ecedb00faeedc6f8f33177f24ca188f9d