Generate two elastic-recheck-graph json files all, and gate only

We want to display the hits for all queues and for just the gate queue.
A parameter was added to elastic-recheck-graph to support this, and a
second patch updates the web page to give the gate queue only option.
This patch updates the usage of elastic-recheck-gate.

Related elastic-recheck patchs:
 * I9217a2ceedf86ffe04851084df78238384fccd51
 * I23ed8d945c9517221622e1ca215c80539bb07bbd

Change-Id: Iac51aeaf152f50f8b9a064cd249b0920bef824df
Merge "Generate two elastic-recheck-graph json files all, and gate only"