Added mobile icons (for Android and iOS)

img/favicons/browserconfig.xml

+<?xml version="1.0" encoding="utf-8"?>
+<browserconfig>
+  <msapplication>
+    <tile>
+      <square70x70logo src="/mstile-70x70.png"/>
+      <square150x150logo src="/mstile-150x150.png"/>
+      <square310x310logo src="/mstile-310x310.png"/>
+      <wide310x150logo src="/mstile-310x150.png"/>
+      <TileColor>#da532c</TileColor>
+    </tile>
+  </msapplication>
+</browserconfig>

img/favicons/manifest.json

+{
+	"name": "uBus",
+	"icons": [
+		{
+			"src": "\/android-chrome-36x36.png",
+			"sizes": "36x36",
+			"type": "image\/png",
+			"density": "0.75"
+		},
+		{
+			"src": "\/android-chrome-48x48.png",
+			"sizes": "48x48",
+			"type": "image\/png",
+			"density": "1.0"
+		},
+		{
+			"src": "\/android-chrome-72x72.png",
+			"sizes": "72x72",
+			"type": "image\/png",
+			"density": "1.5"
+		},
+		{
+			"src": "\/android-chrome-96x96.png",
+			"sizes": "96x96",
+			"type": "image\/png",
+			"density": "2.0"
+		},
+		{
+			"src": "\/android-chrome-144x144.png",
+			"sizes": "144x144",
+			"type": "image\/png",
+			"density": "3.0"
+		},
+		{
+			"src": "\/android-chrome-192x192.png",
+			"sizes": "192x192",
+			"type": "image\/png",
+			"density": "4.0"
+		}
+	]
+}

img/favicons/safari-pinned-tab.svg

+<?xml version="1.0" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 20010904//EN"
+ "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
+<svg version="1.0" xmlns="http://www.w3.org/2000/svg"
+ width="630.000000pt" height="630.000000pt" viewBox="0 0 630.000000 630.000000"
+ preserveAspectRatio="xMidYMid meet">
+<metadata>
+Created by potrace 1.11, written by Peter Selinger 2001-2013
+</metadata>
+<g transform="translate(0.000000,630.000000) scale(0.100000,-0.100000)"
+fill="#000000" stroke="none">
+<path d="M945 5386 c-65 -31 -117 -86 -152 -161 l-28 -60 -3 -1772 -2 -1773
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+<path d="M5066 5254 c-103 -25 -184 -72 -267 -154 -156 -154 -213 -356 -159
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+<path d="M5070 2830 l0 -1210 135 0 135 0 0 1210 0 1210 -135 0 -135 0 0
+-1210z"/>
+<path d="M1080 1256 c0 -267 1 -274 23 -306 46 -68 61 -73 245 -83 92 -4 223
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+<path d="M2250 1200 l0 -330 332 0 c315 0 334 1 374 21 65 31 84 69 84 168 0
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+<path d="M3420 1252 l0 -277 25 -37 c43 -63 73 -69 380 -71 256 -2 272 -1 305
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+<path d="M4670 1508 c-67 -34 -93 -90 -87 -186 5 -81 20 -111 77 -149 32 -22
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+</g>
+</svg>