Update normalize.css to v3.0.3.

sass/normalize.scss

@@ -1,9 +1,9 @@
-/*! normalize.css v3.0.2 | MIT License | git.io/normalize */
+/*! normalize.css v3.0.3 | MIT License | github.com/necolas/normalize.css */
 
 //
 // 1. Set default font family to sans-serif.
-// 2. Prevent iOS text size adjust after orientation change, without disabling
-//    user zoom.
+// 2. Prevent iOS and IE text size adjust after device orientation change,
+//    without disabling user zoom.
 //
 
 html {
@@ -71,7 +71,7 @@ audio:not([controls]) {
 
 //
 // Address `[hidden]` styling not present in IE 8/9/10.
-// Hide the `template` element in IE 8/9/11, Safari, and Firefox < 22.
+// Hide the `template` element in IE 8/9/10/11, Safari, and Firefox < 22.
 //
 
 [hidden],
@@ -91,7 +91,8 @@ a {
 }
 
 //
-// Improve readability when focused and also mouse hovered in all browsers.
+// Improve readability of focused elements when they are also in an
+// active/hover state.
 //
 
 a:active,
@@ -209,7 +210,6 @@ figure {
 //
 
 hr {
-  -moz-box-sizing: content-box;
   box-sizing: content-box;
   height: 0;
 }
@@ -350,15 +350,12 @@ input[type="number"]::-webkit-outer-spin-button {
 
 //
 // 1. Address `appearance` set to `searchfield` in Safari and Chrome.
-// 2. Address `box-sizing` set to `border-box` in Safari and Chrome
-//    (include `-moz` to future-proof).
+// 2. Address `box-sizing` set to `border-box` in Safari and Chrome.
 //
 
 input[type="search"] {
   -webkit-appearance: textfield; // 1
-  -moz-box-sizing: content-box;
-  -webkit-box-sizing: content-box; // 2
-  box-sizing: content-box;
+  box-sizing: content-box; // 2
 }
 
 //