Fixed paths to _static
Lazy initialization of builders in simulation.Job

This prevents constantly rebuilding the model which could lead to
breakage if the state of the job is accidentally changed.
Fixed observable name for mtBid in cpt models

This way it's consistent that the basename matches the bulk
observable in one_cpt while being distributed across the compartments in
the cpt models.
Fixed histogram range glitch
Changed name of pickled-parse BNG output files.
Tracked down an error in histogram normalization

in which I was using the trapezoidal rule, which was leading to
distortions of the normalized frequencies of distributions with small
averages. Instead I now normalize by simply dividing by the total
frequency, which is significantly better.

Also, I moved the job simulation code of the package code for the
translocation module.
Updated rate for bax_kr_nominal
Moved simple_translocation to translocation
Moved plotting functions from translocation to plot_funcs
Stoch/det comparison of tbid bax comparison

Need to create a docs file to explore the differences.