Test on 3.4 and drop 3.2.

Coverage no longer supports 3.2, and since we only just release 3.x
support its highly likely noone cares that we test on 3.2 or not.

Author: rbtcollins

.travis.yml

@@ -2,8 +2,8 @@ language: python
 python:
   - "2.6"
   - "2.7"
-  - "3.2"
   - "3.3"
+  - "3.4"
 
 install:
   - "bash .travis.install"