Merge pull request #4 from zanderso/fix-travis-yml

Run tests on travis
diff --git a/.travis.yml b/.travis.yml
index 3615e3a..3bbe7ba 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,15 +6,8 @@
 
 dart_task:
   - test: --platform vm
-
-# Only run one instance of the formatter and the analyzer, rather than running
-# them against each Dart version.
-matrix:
-  include:
-  - dart: dev
-    dart_task: dartfmt
-  - dart: dev
-    dart_task: dartanalyzer
+  - dartanalyzer
+  - dartfmt
 
 # Only building master means that we don't run two builds for each pull request.
 branches: