Try building on other versions of Python.

Just to see what happens.

Author: rshipp

.travis.yml

@@ -1,7 +1,12 @@
 language: python
 python:
+  - "2.4"
+  - "2.5"
+  - "2.6"
   - "2.7"
+  - "3.2"
   - "3.3"
+  - "3.4"
 install: 
   - "pip install -r requirements-testing.txt --use-mirrors"
   - "pip install coveralls"