code: function tree(root) {
  	var structure = {};
  
  	var _files = fs.readdirSync(root);
  	for(var i=0; i<_files.length; i++) {
  		if ((_files[i] !== '.') && (_files[i] !== '..')) {
  			var stats = fs.statSync(root + '/' + _files[i]);
  			if (stats.isDirectory()) {
  				structure[_files[i]] = tree(root + '/' + _files[i]);
  			} else if (stats.isFile() && xIsJsFile.test(_files[i])) {
  				try {
  					structure[_files[i]] = require(root + '/' + _files[i]);
  				} catch(err) {
  					console.log('Could not load task in: ' + _files[i]);
  					console.error(err);
  				}
  			}
  		}
  	}
  
  	return structure;
  }
docs: Get a tree structure from a directory with given root.  Returns required files if files is .js.
  
  @param {string} root		The starting directory.
  @returns {Object}		The structure.