added js package so that es7 syntax works, moved signaling-server from apps folder to pack folder, removed recurring js errors

.babelrc

@@ -1,18 +1,26 @@
 {
   "presets": [
-    ["env", {
-      "modules": false,
-      "targets": {
-        "browsers": "> 1%",
-        "uglify": true
-      },
-      "useBuiltIns": true
-    }]
+    [
+      "env",
+      {
+        "modules": false,
+        "targets": {
+          "browsers": "> 1%",
+          "uglify": true
+        },
+        "useBuiltIns": true
+      }
+    ]
   ],
-
   "plugins": [
     "syntax-dynamic-import",
     "transform-object-rest-spread",
-    ["transform-class-properties", { "spec": true }]
+    "transform-runtime",
+    [
+      "transform-class-properties",
+      {
+        "spec": true
+      }
+    ]
   ]
 }