Fixed bugs where if optimizations run and..

Save Changes Yes or No clicked and Cancel clicked on file chooser, log
files deleted. Bug was optimizations in tree when clicked loaded no
results in console. Some bugs exist when Yes clicked for Save Changes.
Merge https://github.com/desmondlun/MOST
Removed print statements
SPOT uses FBA to find a suitable starting point
cleanup
clarity
SPOT algorithm improved
IPopt requires obj_factor to multiply the objective gradient's gradient value
fixed a computational bug
Save overwrites loaded csv files, fixed bug...

where on GDBB output, solver name on same line as knockouts.
Recon2 models added.
Updated save behavior

When MOST first opened, Save disabled. Editing a table or loading a
model - except from Model Collection to avoid accidental overwriting)
enables Save.
Fixed bug where editing a reaction equation...

with Reaction Editor did not enable Save.
Paste and Replace All of Compartment updates...

Reaction Equation with full names.
optional hessian parameter commented out in code
added some generics
cleanup
Analysis menu items disabled until a model is loaded
Analysis menu enabled when loading csv reactions...

file, disabled when Clear Tables is clicked.
Fixed bug where GDBB menu item was disabled after...

analysis when Analysis menu item clicked.