Added support for detection of Yandex.Browser.

src/bowser.js

@@ -37,6 +37,13 @@
       , version: versionIdentifier || getFirstMatch(/(?:opera|opr)[\s\/](\d+(\.\d+)?)/i)
       }
     }
+    else if (/yabrowser/i.test(ua)) {
+      result = {
+        name: 'Yandex Browser'
+      , yandexbrowser: t
+      , version: versionIdentifier || getFirstMatch(/(?:yabrowser)[\s\/](\d+(\.\d+)?)/i)
+      }
+    }
     else if (/windows phone/i.test(ua)) {
       result = {
         name: 'Windows Phone'
@@ -223,6 +230,7 @@
     // http://developer.yahoo.com/yui/articles/gbs
     if (result.msedge ||
         (result.msie && result.version >= 10) ||
+        (result.yandexbrowser && result.version >= 15) ||
         (result.chrome && result.version >= 20) ||
         (result.firefox && result.version >= 20.0) ||
         (result.safari && result.version >= 6) ||

src/useragents.js

@@ -252,6 +252,23 @@ module.exports.useragents = {
       , c: true
       }
     }
+  , 'Yandex Browser': {
+        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.118 YaBrowser/15.4.2272.3420 (beta) Yowser/2.0 Safari/537.36': {
+            yandexbrowser: true
+            , webkit: true
+            , version: '15.4'
+            , a: true
+        },
+        'Mozilla/5.0 (Linux; Android 5.1.1; Nexus 5 Build/LMY48B) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.118 YaBrowser/15.4.2272.3608.00 Mobile Safari/537.36': {
+            yandexbrowser: true
+            , android: true
+            , osversion: '5.1.1'
+            , mobile: true
+            , version: '15.4'
+            , webkit: true
+            , a: true
+        }
+    }
   , Safari: {
       'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/537.13+ (KHTML, like Gecko) Version/5.1.7 Safari/534.57.2': {
         safari: true