Fixed undefined var parsed

On Node 0.10.32 I get the following error using this lib:

    ReferenceError: parsed is not defined
        at Request._callback (/Users/filipbonnevier/projects/heatmap/node_modules/runkeeper-js/lib/runkeeper.js:115:22)
        at Request.self.callback (/Users/filipbonnevier/projects/heatmap/node_modules/runkeeper-js/node_modules/request/request.js:372:22)
        at Request.emit (events.js:98:17)
        at Request.<anonymous> (/Users/filipbonnevier/projects/heatmap/node_modules/runkeeper-js/node_modules/request/request.js:1317:14)
        at Request.emit (events.js:117:20)
        at IncomingMessage.<anonymous> (/Users/filipbonnevier/projects/heatmap/node_modules/runkeeper-js/node_modules/request/request.js:1265:12)
        at IncomingMessage.emit (events.js:117:20)
        at _stream_readable.js:943:16
        at process._tickCallback (node.js:419:13)