E.g.: `useCache` in the following: $ triton -v insts ... [2015-09-21T17:37:57.600Z] TRACE: triton/34623 on danger0.local (/Users/trentm/joy/node-triton/node_modules/restify-clients/lib/HttpClient.js:265 in rawRequest): request sent GET /trentm/images?useCache=true HTTP/1.1 Host: 10.88.88.6 date: Mon, 21 Sep 2015 17:37:57 GMT authorization: Signature keyId="/trentm/keys/de:e7:73:... accept: application/json user-agent: triton/1.0.0 (x64-darwin; node/0.10.40) accept-version: *