Function _extend

lib/FileAPI.core.js:99–105

(dst)

		 * Merge the contents of two or more objects together into the first object
		 */
		_extend = function (dst){
			var args = arguments, i = 1, _ext = function (val, key){ dst[key] = val; };
			for( ; i < args.length; i++ ){
				_each(args[i], _ext);
			}
			return  dst;
		},

		/**
		 * Add event listener