.travis.yml in representable-1.2.3 vs .travis.yml in representable-1.2.4

@@ -1,3 +1,9 @@
-rvm: 1.9.2
 notifications:
   irc: "irc.freenode.org#cells"
+matrix:
+  include:
+    - rvm: 1.8.7
+      gemfile: gemfiles/Gemfile.mongoid-2.4
+    - rvm: 1.9.3
+      gemfile: Gemfile
+