fixed some naming stuff

Author: Michael Vasquez

index.js

@@ -1,4 +1,4 @@
 module.exports = {
-    ResizeSensor: require('./src/resize-sensor'),
-    ElementQueries: require('./src/element-queries')
+    ResizeSensor: require('./src/resize-sensor.js'),
+    ElementQueries: require('./src/element-queries.js')
 };