Bugfix: Properly handles not finding BOSH alias
Bugfix: Properly handles not finding BOSH alias

No longer errors out if params.bosh is not found.  Instead, correctly
prompts user when `genesis ci` encounters a BOSH not known by
~/.bosh/config to provide connection information for it.

starkandwayne/genesis,starkandwayne/genesis,starkandwayne/genesis