Release with new go111 runtime

go111 is required for memcache support.

Release with new go113 runtime

Update to go113 runtime (#19)
Temporarily exclude locate/v2 proxy requests (#20)

Fix client signature size exceeding 250 bytes

Merge pull request #16 from m-lab/sandbox-roberto-truncate-keys

Truncate memcache keys at 250 bytes

Write request signatures directly to memcache and Enable rate-limit using a threshold of 40 requests per day.

#14
Write request signatures directly to memcache

#15
Enable rate-limit using a threshold of 40 requests per day

Initial release

This release includes a query to identify and stop the 6-hour clients.