Keyboard nav fixes (seek & focus trap in fullscreen), SASS updates

src/sprite/icon-restart.svg

@@ -1,5 +1,9 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<svg viewBox="0 0 18 18" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
-	<title>Restart</title>
-	<path d="M17,2 C16.448,2 16,2.448 16,3 L16,7.318 L7,2 C6.448,2 6,2.448 6,3 L6,4.954 L1,2 C0.448,2 0,2.448 0,3 L0,15 C0,15.552 0.448,16 1,16 L6,13.045 L6,15 C6,15.552 6.448,16 7,16 L16,10.682 L16,15 C16,15.552 16.448,16 17,16 C17.552,16 18,15.552 18,15 L18,3 C18,2.448 17.552,2 17,2 L17,2 Z M6,10.722 L2,13.086 L2,4.914 L6,7.278 L6,10.722 L6,10.722 Z M8,13.086 L8,4.914 L14.915,9 L8,13.086 L8,13.086 Z" transform="translate(9.000000, 9.000000) scale(-1, 1) translate(-9.000000, -9.000000) "></path>
-</svg>
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generator: Adobe Illustrator 19.1.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+	 width="16px" height="16px" viewBox="0 0 16 16" enable-background="new 0 0 16 16" xml:space="preserve">
+<path d="M7.7,1.2l0.7,6.4l2.1-2.1c1.9,1.9,1.9,5.1,0,7C9.6,13.5,8.3,14,7,14c-1.3,0-2.6-0.5-3.5-1.5
+	c-1.9-1.9-1.9-5.1,0-7c0.6-0.6,1.4-1.1,2.3-1.3L5.2,2.3C4,2.6,2.9,3.2,2,4.1c-2.7,2.7-2.7,7.1,0,9.9c1.3,1.3,3.1,2,4.9,2
+	c1.9,0,3.6-0.7,4.9-2c2.7-2.7,2.7-7.1,0-9.9l2.2-2.2L7.7,1.2z"/>
+</svg>