am d23d7f2d: Add a \'wipe\' operation to Bmgr

Merge commit 'd23d7f2d12c20314e1e8ff206fafc8f21745ca2d'

* commit 'd23d7f2d12c20314e1e8ff206fafc8f21745ca2d':
  Add a 'wipe' operation to Bmgr