set SMTP timeout to 10 seconds and make it configurable, ref 9a735e8
make CORS middleware more generic to use
fix make_app logic
cumtime is only available in Python 2.7.4 or later
an attempt to address #69

Add a global-like object that stores the delta from server time and
client time in a list and use the resulting average to "correct"
utils.ago diffs.
Merge branch 'fix-time-ago', closes #69
improve "time from now" helper, based on moment.js

http://momentjs.com/docs/#/displaying/fromnow/