add Epiphany browser

fix #130

src/bowser.js

@@ -82,6 +82,13 @@
         , version: getFirstMatch(/(?:mxios)[\s\/](\d+(?:\.\d+)+)/i)
       }
     }
+    else if (/epiphany/i.test(ua)) {
+      result = {
+        name: 'Epiphany'
+        , epiphany: t
+        , version: getFirstMatch(/(?:epiphany)[\s\/](\d+(?:\.\d+)+)/i)
+      }
+    }
     else if (windowsphone) {
       result = {
         name: 'Windows Phone'

src/useragents.js

@@ -1179,4 +1179,13 @@ module.exports.useragents = {
       , a: true
     }
   }
+  , 'Epiphany': {
+    'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/602.1 (KHTML, like Gecko) Version/8.0 Safari/602.1 Debian/buildd-unstable (3.18.5-1) Epiphany/3.18.5': {
+      epiphany: true
+      , x: true
+      , webkit: true
+      , version: '3.18.5'
+      , linux: true
+    }
+  }
 }