sta: call hva's wait_volumes_available after preparing each volume.
Merge pull request #375 from axsh/fix-issue-374

Fix for #374
Revert "mussel: add or_fail_with option to retry functions."

This reverts commit 0b1caf7462ad6251bf72576d56d0fe0da16851ce.
Merge pull request #378 from axsh/revert-retry-sh

Revert "mussel: add or_fail_with option to retry functions."
Merge branch 'master' into fix-vz-smoke-trigger