Change max_bias_adj to 0.9
Change the initial value for the maximum bias adjustment in the EM.
This only affects runs prior to the bias adjument calculations.
Hopefully the model will run faster because the value is closer to the averaged values after running Ian Taylor's code.
New sardine model
The old sardine model is not in sar_Old. The newer model is more stable.
New model was changed back to a ricker SR relationship and the growth parameters are now the MLE from the latest assessment document.
Also changed the bias adjustment to 0.9 to match the others.