Upgrade lato fonts to v16. (#9498)

* Upgrade lato fonts to v16

* Upgrade lato fonts to v16

* fix bug

templates/pwa/serviceworker_js.tmpl

@@ -46,8 +46,8 @@ var urlsToCache = [
   // fonts
   '{{StaticUrlPrefix}}/vendor/plugins/fomantic/themes/default/assets/fonts/icons.woff2',
   '{{StaticUrlPrefix}}/vendor/assets/octicons/octicons.woff2?ef21c39f0ca9b1b5116e5eb7ac5eabe6',
-  '{{StaticUrlPrefix}}/vendor/assets/lato-fonts/lato-v14-latin-regular.woff2',
-  '{{StaticUrlPrefix}}/vendor/assets/lato-fonts/lato-v14-latin-700.woff2'
+  '{{StaticUrlPrefix}}/vendor/assets/lato-fonts/lato-v16-latin-regular.woff2',
+  '{{StaticUrlPrefix}}/vendor/assets/lato-fonts/lato-v16-latin-700.woff2'
 ];
 
 self.addEventListener('install', function (event) {

web_src/less/_base.less

@@ -1,33 +1,85 @@
+/* lato-regular - latin */
 @font-face {
     font-family: 'Lato';
-    src: url('../vendor/assets/lato-fonts/lato-regular.eot');
-    src: url('../vendor/assets/lato-fonts/lato-regular.eot?#iefix') format('embedded-opentype'), url('../vendor/assets/lato-fonts/lato-regular.woff2') format('woff2'), url('../vendor/assets/lato-fonts/lato-regular.woff') format('woff'), url('../vendor/assets/lato-fonts/lato-regular.ttf') format('truetype');
-    font-weight: 400;
     font-style: normal;
-}
-
+    font-weight: 400;
+    src: url('../vendor/assets/lato-fonts/lato-v16-latin-regular.eot'); /* IE9 Compat Modes */
+    src:
+        local('Lato Regular'),
+        local('Lato-Regular'),
+        /* IE6-IE8 */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-regular.eot?#iefix') format('embedded-opentype'),
+        /* Super Modern Browsers */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-regular.woff2') format('woff2'),
+        /* Modern Browsers */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-regular.woff') format('woff'),
+        /* Safari, Android, iOS */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-regular.ttf') format('truetype'),
+        /* Legacy iOS */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-regular.svg#Lato') format('svg');
+}
+
+/* lato-italic - latin */
 @font-face {
     font-family: 'Lato';
-    src: url('../vendor/assets/lato-fonts/lato-italic.eot');
-    src: url('../vendor/assets/lato-fonts/lato-italic.eot?#iefix') format('embedded-opentype'), url('../vendor/assets/lato-fonts/lato-italic.woff2') format('woff2'), url('../vendor/assets/lato-fonts/lato-italic.woff') format('woff'), url('../vendor/assets/lato-fonts/lato-italic.ttf') format('truetype');
-    font-weight: 400;
     font-style: italic;
-}
-
+    font-weight: 400;
+    src: url('../vendor/assets/lato-fonts/lato-v16-latin-italic.eot'); /* IE9 Compat Modes */
+    src:
+        local('Lato Italic'),
+        local('Lato-Italic'),
+        /* IE6-IE8 */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-italic.eot?#iefix') format('embedded-opentype'),
+        /* Super Modern Browsers */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-italic.woff2') format('woff2'),
+        /* Modern Browsers */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-italic.woff') format('woff'),
+        /* Safari, Android, iOS */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-italic.ttf') format('truetype'),
+        /* Legacy iOS */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-italic.svg#Lato') format('svg');
+}
+
+/* lato-700 - latin */
 @font-face {
     font-family: 'Lato';
-    src: url('../vendor/assets/lato-fonts/lato-bold.eot');
-    src: url('../vendor/assets/lato-fonts/lato-bold.eot?#iefix') format('embedded-opentype'), url('../vendor/assets/lato-fonts/lato-bold.woff2') format('woff2'), url('../vendor/assets/lato-fonts/lato-bold.woff') format('woff'), url('../vendor/assets/lato-fonts/lato-bold.ttf') format('truetype');
-    font-weight: 700;
     font-style: normal;
-}
-
+    font-weight: 700;
+    src: url('../vendor/assets/lato-fonts/lato-v16-latin-700.eot'); /* IE9 Compat Modes */
+    src:
+        local('Lato Bold'),
+        local('Lato-Bold'),
+        /* IE6-IE8 */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-700.eot?#iefix') format('embedded-opentype'),
+        /* Super Modern Browsers */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-700.woff2') format('woff2'),
+        /* Modern Browsers */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-700.woff') format('woff'),
+        /* Safari, Android, iOS */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-700.ttf') format('truetype'),
+        /* Legacy iOS */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-700.svg#Lato') format('svg');
+}
+
+/* lato-700italic - latin */
 @font-face {
     font-family: 'Lato';
-    src: url('../vendor/assets/lato-fonts/lato-bolditalic.eot');
-    src: url('../vendor/assets/lato-fonts/lato-bolditalic.eot?#iefix') format('embedded-opentype'), url('../vendor/assets/lato-fonts/lato-bolditalic.woff2') format('woff2'), url('../vendor/assets/lato-fonts/lato-bolditalic.woff') format('woff'), url('../vendor/assets/lato-fonts/lato-bolditalic.ttf') format('truetype');
-    font-weight: 700;
     font-style: italic;
+    font-weight: 700;
+    src: url('../vendor/assets/lato-fonts/lato-v16-latin-700italic.eot'); /* IE9 Compat Modes */
+    src:
+        local('Lato Bold Italic'),
+        local('Lato-BoldItalic'),
+        /* IE6-IE8 */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-700italic.eot?#iefix') format('embedded-opentype'),
+        /* Super Modern Browsers */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-700italic.woff2') format('woff2'),
+        /* Modern Browsers */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-700italic.woff') format('woff'),
+        /* Safari, Android, iOS */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-700italic.ttf') format('truetype'),
+        /* Legacy iOS */
+        url('../vendor/assets/lato-fonts/lato-v16-latin-700italic.svg#Lato') format('svg');
 }
 
 @font-face {