Add more minimization parameters to fit wrappers
Add ability to inspect each type of cost in cost_kaveh
Use another formulation of uniaxial pressure
Rewrite constitutive model with PK1 and F
Fixed factor of 2 on pI
Allow full-magnitude error in kaveh cost
Update MR tanstiff for 3-term model
More verbose debug cost
Change PK1 sign in parse_kaveh.  Is this right?
Nope, remove negative from PK1
Fix cost_kaveh to use F instead of b :facepalm: