.travis.yml in mittsu-0.2.2 vs .travis.yml in mittsu-0.2.3

@@ -1,10 +1,10 @@
 language: ruby
 rvm:
   2.4.0
 
 env:
-- MITTSU_LIBGLFW_PATH=/usr/local/lib MITTSU_LIBGLFW_FILE=libglfw.so MINITEST_REPORTER=JUnit
+- MITTSU_LIBGLFW_PATH=/usr/local/lib MITTSU_LIBGLFW_FILE=libglfw.so MINITEST_REPORTER=JUnitReporter
 
 addons:
   apt:
     sources:
       - george-edison55-precise-backports # cmake 3.2.3 / doxygen 1.8.3