fixs lame divide by zero problem.
getting a *decrease* in temps over time...
correct precursor data from http://arxiv.org/pdf/1403.1746.pdf and /Users/khuff/Downloads/Faisal_Raja_MS_Thesis_Final_Submission.pdf in the form of beta_i rather than relative yeilds..
index changes to do_over
the th_params class now owns the component names
for beauty, adds spaces between betas in the list