More complete favicon support from https://realfavicongenerator.net/

Support for more platforms and browsers.

Author: headius

_includes/head.html

@@ -4,6 +4,11 @@
   <link rel="icon" type="image/png" sizes="32x32" href="/images/favicon-32x32.png">
   <link rel="icon" type="image/png" sizes="16x16" href="/images/favicon-16x16.png">
   <link rel="manifest" href="/site.webmanifest">
+  <link rel="mask-icon" href="/images/safari-pinned-tab.svg" color="#5bbad5">
+  <link rel="shortcut icon" href="/favicon.ico">
+  <meta name="msapplication-TileColor" content="#2d89ef">
+  <meta name="msapplication-config" content="/browserconfig.xml">
+  <meta name="theme-color" content="#ffffff">
   <link rel="alternate" href="/atom.xml" title="JRuby.org News" type="application/atom+xml"/>
   <link rel="stylesheet" href="/stylesheets/main.css?version=1" type="text/css" media="screen" title="no title" charset="utf-8" />
   <!--[if lte IE 7]><link rel="stylesheet" href="/stylesheets/ie7-hacks.css" type="text/css" media="screen" title="no title" charset="utf-8" /><![endif]-->

browserconfig.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<browserconfig>
+    <msapplication>
+        <tile>
+            <square150x150logo src="/images/mstile-150x150.png"/>
+            <TileColor>#2d89ef</TileColor>
+        </tile>
+    </msapplication>
+</browserconfig>