Corrects the ruby dockerfile to ensure it has access to git-on-[].

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
2 files changed