ENH: trying to go native travis-ci python way to take advantage of virtualenv's with older pythons

.travis.yml

@@ -1,14 +1,11 @@
 # vim ft=yaml
-# travis-ci.org definition for Fail2Ban build (based on nipy configuration)
-#
-# We pretend to be erlang because we need can't use the python support in
-# travis-ci; it uses virtualenvs, they do not have numpy, scipy, matplotlib,
-# and it is impractical to build them
-language: erlang
-env:
-    - PYTHON=python PYSUF=''
-    # - PYTHON=python3 PYSUF=3 : python3-numpy not currently available
+# travis-ci.org definition for Fail2Ban build
+language: python
+python:
+  - "2.5"
+  - "2.6"
+  - "2.7"
 install:
-    - sudo apt-get install $PYTHON-all $PYTHON-all-dbg $PYTHON-pyinotify $PYTHON-gamin
+  - "pip install pyinotify"
 script:
-    - ./fail2ban-testcases-all
+    - python ./fail2ban-testcases