Upgrade primus

Author: DamonOehlman

package.json

@@ -29,7 +29,7 @@
     "curry": "^1.2.0",
     "debug": "^2.0.0",
     "mbus": "^2.0.0",
-    "primus": "^2",
+    "primus": "^3.0.2",
     "through": "^2",
     "ws": "^0.7.1"
   },
@@ -47,4 +47,4 @@
     "uuid": "^2.0.1",
     "whisk": "^1.0.0"
   }
-}
+}