Update node module version (#144)

* Update package-lock.json
* Update package.json

Author: NewJerseyStyle

client-participation/package-lock.json

@@ -26,7 +26,7 @@
     "compression-webpack-plugin": "~10.0.0",
     "copy-webpack-plugin": "~11.0.0",
     "d3": "~3.5.17",
-    "d3-force": "~1.2.1",
+    "d3-force": "^2.1.0",
     "d3-tip": "~0.6.8",
     "deepcopy": "~0.4.0",
     "event-hooks-webpack-plugin": "~2.2.0",