fixes #5280 - added tests for Nexus 6 & 9

Tests/fixtures/smartphone.yml

@@ -2906,6 +2906,24 @@
     model: Nexus 5
   os_family: Android
   browser_family: Chrome
+- 
+  user_agent: Mozilla/5.0 (Linux; Android 5.0; Nexus 6 Build/LRX21D) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/37.0.0.0 Mobile Safari/537.36
+  os:
+    name: Android
+    short_name: AND
+    version: 5.0
+  client:
+    type: browser
+    name: Chrome Mobile
+    short_name: CM
+    version: 37.0.0.0
+    engine: Blink
+  device:
+    type: smartphone
+    brand: GO
+    model: Nexus 6
+  os_family: Android
+  browser_family: Chrome
 - 
   user_agent: Mozilla/5.0 (Linux; U; Android 2.3.6; es-es; Nexus One Build/GRK39F) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1
   os:
@@ -24715,7 +24733,7 @@
     model: X500
   os_family: Android
   browser_family: Android Browser
-- 
+-
   user_agent: Mozilla/5.0 (Linux; U; Android 4.1.1; en-us; ZTE-Z992 Build/JRO03C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30
   os:
     name: Android

Tests/fixtures/tablet.yml

@@ -3707,6 +3707,24 @@
     model: Nexus 7
   os_family: Android
   browser_family: Chrome
+- 
+  user_agent: Mozilla/5.0 (Linux; Android 5.0; Nexus 9 Build/LRX21F) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.509 Safari/537.36
+  os:
+    name: Android
+    short_name: AND
+    version: 5.0
+  client:
+    type: browser
+    name: Chrome
+    short_name: CH
+    version: 38.0.2125.509
+    engine: Blink
+  device:
+    type: tablet
+    brand: GO
+    model: Nexus 9
+  os_family: Android
+  browser_family: Chrome
 - 
   user_agent: Mozilla/5.0 (Linux; Android 4.2.2; HP Slate 10 HD Build/JDQ39) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.114 Safari/537.36
   os: