Installing jython slows down the travis runs too much.

.travis.yml

@@ -11,27 +11,6 @@ python:
 install:
     - pip install . --use-mirrors
 script:
-    - $PYTHON_EXE setup.py test -q
+    - python setup.py test -q
 notifications:
     email: false
-env:
-    - JYTHON=true
-    - JYTHON=false
-before_script: if [ "$JYTHON" == "true" ]; then export PYTHON_EXE=jython; jython -c "print ''"; else export PYTHON_EXE=python; fi
-before_install:
-  - export JYTHON_URL='http://search.maven.org/remotecontent?filepath=org/python/jython-installer/2.7-rc2/jython-installer-2.7-rc2.jar'
-  - if [ "$JYTHON" == "true" ]; then wget $JYTHON_URL -O jython_installer.jar; java -jar jython_installer.jar -s -d $HOME/jython; export PATH=$HOME/jython/bin:$PATH; fi
-matrix:
-  exclude:
-    - python: 2.6
-      env: JYTHON=true
-    - python: 3.2
-      env: JYTHON=true
-    - python: 3.3
-      env: JYTHON=true
-    - python: 3.4
-      env: JYTHON=true
-    - python: pypy
-      env: JYTHON=true
-    - python: pypy3
-      env: JYTHON=true