plugin.paste

//Paste this as the JS code for the "user javascript and css" extension for the page you customize... don't forget to edit urls

//Load the JS from Github
	  var firstScript = document.getElementsByTagName('script')[0],
	      js = document.createElement('script');
	  js.src = 'https://cdn.rawgit.com/v4virtual/trello_customizations/master/custom.js';
	  js.onload = function () {
	  	//you can call some functions from the imported file here
	  };
	  firstScript.parentNode.insertBefore(js, firstScript);

//Load the CSS from Github
	var cssId = 'TrelloCustomCss';  // you could encode the css path itself to generate id..
	if (!document.getElementById(cssId))
	{
	    var head  = document.getElementsByTagName('head')[0];
	    var link  = document.createElement('link');
	    link.id   = cssId;
	    link.rel  = 'stylesheet';
	    link.type = 'text/css';
	    link.href = 'https://cdn.rawgit.com/v4virtual/trello_customizations/master/custom.css';
	    link.media = 'all';
	    head.appendChild(link);
	}