Change the testing matrix

.travis.yml

@@ -1,8 +1,11 @@
 language: node_js
 env:
   matrix:
-    - "BROWSER='firefox:19:Windows 2012'"
+    - "BROWSER='firefox::Windows 10'"
-    - "BROWSER='chrome::Windows 2008'"
+    - "BROWSER='chrome::Windows 10'"
+    - "BROWSER='MicrosoftEdge:14.14393:Windows 10'"
+    - "BROWSER='internet explorer:11.103:Windows 10'""
+    - "BROWSER='safari:10.0:macOS 10.12'"
 branches:
   only:
     - master