bump metrics to work with promethious

services/docstore/app.coffee

@@ -27,6 +27,8 @@ app.param 'doc_id', (req, res, next, doc_id) ->
 	else
 		next new Error("invalid doc id")
 
+Metrics.injectMetricsRoute(app)
+
 app.get  '/project/:project_id/doc', HttpController.getAllDocs
 app.get  '/project/:project_id/ranges', HttpController.getAllRanges
 app.get  '/project/:project_id/doc/:doc_id', HttpController.getDoc

services/docstore/package.json

@@ -26,7 +26,7 @@
     "coffee-script": "^1.7.1",
     "express": "~4.1.1",
     "logger-sharelatex": "git+https://github.com/sharelatex/logger-sharelatex.git#v1.4.0",
-    "metrics-sharelatex": "git+https://github.com/sharelatex/metrics-sharelatex.git#v1.7.1",
+    "metrics-sharelatex": "git+https://github.com/sharelatex/metrics-sharelatex.git#v1.9.0",
     "mongojs": "2.4.0",
     "settings-sharelatex": "git+https://github.com/sharelatex/settings-sharelatex.git#v1.0.0",
     "underscore": "~1.6.0"