altered appcontroller to pass GCE project id to infrastructure manager
moved GCE project id credential to be more accessible to infrastructure manager
added gce_agent in and added unit tests for it
fixed format error in GCE_URL and enabling root login correctly in GCE
Merge remote-tracking branch 'org/testing' into gce-support
Merge pull request #520 from shatterednirvana/gce-support

Added support for Google Compute Engine