Upgrade sc-broker-cluster

Author: jondubois

package.json

@@ -21,7 +21,7 @@
     "minimist": "1.1.0",
     "node-uuid": "1.4.7",
     "sc-auth": "3.x.x",
-    "sc-broker-cluster": "2.x.x",
+    "sc-broker-cluster": "3.x.x",
     "sc-domain": "1.x.x",
     "sc-emitter": "1.x.x",
     "sc-errors": "1.x.x",