Fix dangling comma

Author: STRML

lib/CaptureClicks.js

@@ -10,7 +10,7 @@ var omit = require('object.omit');
 var PROP_TYPES = {
  component: React.PropTypes.oneOfType([
  React.PropTypes.string,
- React.PropTypes.func,
+ React.PropTypes.func
  ]).isRequired,
  environment: React.PropTypes.object,
  gotoURL: React.PropTypes.func