- the client test gets new, necessary flags

- adds a prod test command that explicitly sets the SSL_CERT_FILE to pick up
certs that the c core can load successfully.

Adding 2 runners to run the test matrix

- also corrects an error in the Go client test command

- add rubocop as a dev dependency
- fixed many style violations it reported, often using --auto-correct
- add a rubocop config
 - .rubocop.yml shows the exceptions
 - .rubocopy_todo.yml tracks outstanding style issues
- adds a rake task to allow rubocop styling checks to be automated

- also allows it to sync multiple hosts

- adds _grpc_ensure_gcloud_ssh that creates the ~/.ssh/gcloud_compute_engine
  key file if it does not exist

- update all the grpc_** commands that use ssh to call this

Adds a command for triggering a pull of the latest built docker images.
	Change on 2015/01/09 by temiola <temiola@google.com>
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=83641150