quantopian/zipline — pull request #352 by twiecki (2014-06-18 15:20:07+00:00)
Title: Refactor sim_params

I stumbled over some problems when trying to change daily events to get the dt of closing day, rather than midnight. I then saw that the code is a little complex and has identical settings in different places that can get out of sync so this is aimed at untangling this code a bit.