Finalizing initial stackless testing support.

#20
Reenabled the other environments

.travis.yml

@@ -2,23 +2,23 @@ language: python
 python:
   - "2.7"
 env:
-#  - TOX_ENV=27gevent
-#  - TOX_ENV=pypygevent
-#  - TOX_ENV=33gevent
+  - TOX_ENV=27gevent
+  - TOX_ENV=pypygevent
+  - TOX_ENV=33gevent
   - TOX_ENV=27slptravis
 before_install:
   - if [ \"$TOX_ENV\" == \"27slptravis\" ]; then wget http://www.robg3d.com/downloads/stackless-2.7.6_amd64.zip; fi
   - if [ \"$TOX_ENV\" == \"27slptravis\" ]; then unzip -q stackless-2.7.6_amd64.zip -d $HOME; fi
 install:
   - "pip install tox --download-cache $HOME/.pip-cache"
-#  - "pip install coveralls --download-cache $HOME/.pip-cache"
+  - "pip install coveralls --download-cache $HOME/.pip-cache"
 script:
   - tox -e $TOX_ENV
 #after_failure:
 #  - "cat /home/travis/build/rgalanakis/goless/.tox/33gevent/log/33gevent-*.log"
 #  - "cat /home/travis/.pip/pip.log"
-#after_success:
-#  - coveralls
+after_success:
+  - coveralls
 cache:
   directories:
     - .tox