E/D and SPACE docs need to reflect new, corrected treatment of porosity

[cmshobe]

Which means that now there is no porosity term in the Qs_in calculation, and there is porosity adjustment for both E and D in all models and all solvers, rather than just a correction for D.

[kbarnhart]

@cmshobe This change in Landlab appears to break only a small number of test (rather than all the tests that use a Hy variant model). Does this make sense to you?

See, for example, this build.

The tests that break are all in tests/test_model_basicHyRt.py.

Please address these changes. It would be great if you could do it on the following branch:

git fetch origin
git checkout -b barnhark/fix_few_bugs origin/barnhark/fix_few_bugs

When you have made your fixes, there may still be a few failures because @Glader011235 is making changes too based on #142 .

[cmshobe]

I'll check it out-- don't know a priori why not all tests are failing.

[kbarnhart]

@cmshobe I was able to fix this by slightly relaxing the decimal precision of the comparison and increasing the number of iterations in the test.

Am I correct in thinking that the change in landlab should not have affected any tests b/c there is no phi in the steady solution?