Add in new metrics

app/coffee/Metrics.coffee

@@ -1,23 +1,2 @@
-StatsD = require('lynx')
-statsd = new StatsD('localhost', 8125, {on_error:->})
-
-buildKey = (key)-> "clsi.#{process.env.NODE_ENV or "testing"}.#{key}"
-
-module.exports =
-	set : (key, value, sampleRate = 1)->
-		statsd.set buildKey(key), value, sampleRate
-
-	inc : (key, sampleRate = 1)->
-		statsd.increment buildKey(key), sampleRate
-
-	Timer : class
-		constructor :(key, sampleRate = 1)->
-			this.start = new Date()
-			this.key = buildKey(key)
-		done:->
-			timeSpan = new Date - this.start
-			statsd.timing(this.key, timeSpan, this.sampleRate)
-
-	gauge : (key, value, sampleRate = 1)->
-		statsd.gauge key, value, sampleRate
+module.exports = require "metrics-sharelatex"