Write to Pingping Shen about reproducing figs/errors in models

[johnbachman]

Notable errors in models:

• Chen Biophys J is ambiguous/inconsistent with regards to various parameters, and as to initial conditions used for simulations.
• Chen 2007 FEBS nearly, but not perfectly, reproduces dose response curves from paper.
• Cui (all models) have a number of errors: InBax reverse reaction, and consumption of Act upon catalysis of Bax activation.