Migrated to python27

Google recommended this [1], and I thought it might fix our memory failures [2].  It did. [3]

[1] https://developers.google.com/appengine/docs/python/python25/migrate27
[2] http://dl.dropbox.com/u/1131693/bloodrop/Screenshot%202014-02-23%2014.32.07.png
[3] http://dl.dropbox.com/u/1131693/bloodrop/Screenshot%202014-02-23%2014.32.42.png

Test Plan:
<see below>