Move icon to favicon.ico

Author: José Valim

README.markdown renamed to README.md

@@ -7,7 +7,6 @@
   <link href="http://feeds.feedburner.com/ElixirLang" rel="alternate" title="Elixir's Blog" type="application/atom+xml" />
   <link rel="stylesheet" type="text/css" href="/css/style.css">
   <link rel="stylesheet" type="text/css" href="/css/syntax.css">
-  <link rel="shortcut icon" href="/images/logo/drop.png">
   <meta name="viewport" content="width=device-width,initial-scale=1">
   <link rel="stylesheet" id="font-bitter-css" href="http://fonts.googleapis.com/css?family=Bitter&amp;ver=1" type="text/css" media="screen">
 </head>