Use new 'robust' subscription scheme

services/document-updater/app.coffee

@@ -11,7 +11,7 @@ Errors = require "./app/js/Errors"
 HttpController = require "./app/js/HttpController"
 
 redis = require("redis-sharelatex")
-rclient = redis.createClient(Settings.redis.web)
+rclient = redis.createRobustSubscriptionClient(Settings.redis.web)
 
 
 Path = require "path"

services/document-updater/package.json

@@ -21,7 +21,7 @@
     "metrics-sharelatex": "git+https://github.com/sharelatex/metrics-sharelatex.git#v1.0.0",
     "sinon": "~1.5.2",
     "mongojs": "0.9.11",
-    "redis-sharelatex": "~0.0.4"
+    "redis-sharelatex": "git+https://github.com/sharelatex/redis-sharelatex.git#master"
   },
   "devDependencies": {
     "grunt-execute": "~0.1.5",