Add kindle fire device detection

src/ua-parser.js

@@ -313,9 +313,13 @@
             /(kindle)\/([\w\.]+)/i,                                             // Kindle
             /\s(nook)[\w\s]+build\/(\w+)/i,                                     // Nook
             /(dell)\s(strea[kpr\s\d]*[\dko])/i                                  // Dell Streak
+
             ], [VENDOR, MODEL, [TYPE, TABLET]], [
 
-            /\((ip[honed|\s\w*]+);.+(apple)/i                                         // iPod/iPhone
+            /(kf[A-z]+)\sbuild\/[\w\.]+.*silk\//i,                              // Kindle Fire HD
+            ], [MODEL, [VENDOR, 'Amazon'], [TYPE, TABLET]], [
+
+            /\((ip[honed|\s\w*]+);.+(apple)/i                                   // iPod/iPhone
             ], [MODEL, VENDOR, [TYPE, MOBILE]], [
 
             /(blackberry)[\s-]?(\w+)/i,                                         // BlackBerry