untabify
A little code cleanup to make this easier to read.
Made sign convention consistent in heat transfer stabilization.
Also whitespace/untabify.
Consistent sign convention. Also better readability. Some whitespace
too.
Commented out terms corresponding to full adjoint. Didn't really
work for me, but might want to come back to them later.
Be able to separately set flow and heat transfer tau, while defaulting
to the previous naming.
Fix in input file.
Best of I've been able to do on the convection cell example.