Make 'bosh vms' with no argument show all deployments.

Preserve existing behavior of accepting a deployment argument.

Add spec for vms command.
Set target and auth in vms command spec.
[openstack_cpi] Fix snapshot disk when volume doesn't have any attachment
[bosh_aws_cpi] clean up code quality of Bosh::AwsCloud::Cloud#initialize

Add accessors and replace explicit reference to instance variables
Convert unnecessary double-quoted strings to single-quotes
[director] Use new Resque logging and signaling properties [fixes #48285613]

- Change deprecated VERBOSE and VVERBOSE logging properties with new Resque Logger
- Use Resque new signal handling path (see http://hone.heroku.com/resque/2012/08/21/resque-signals.html)
[release] Delete utility job [fixes #48217295]
[director] Let max_in_flight be more than 32 [fixes #47570943]
Replace archive-tar-minitar gem with newer minitar gem [fixes #48713695]
[cli] Better error message on shh when authentication failed [fixes #49676225]

Also improved some unit tests.
[agent] DRY up ApplyPlan's Job and Package by adding Helpers
[cli] fix 'dirty_state?' to work with git older than 1.8
Use job colocation for OpenStack microBosh