change to travis.

Author: Miguel Leon

.travis.yml

@@ -5,9 +5,9 @@ sudo: required
 python:
 #  - "2.6"
   - "2.7"
-#  - "3.2"
-#  - "3.3"
-#  - "3.4"
+  - "3.2"
+  - "3.3"
+  - "3.4"
 #  - "3.5"
 #  - "3.5-dev" # 3.5 development branch
 #  - "nightly" # currently points to 3.6-dev