Merge pull request #1671 from setowns1/bug

Some speedups for an NREL model
Properly handle saving results to CaseRecorders when exceptions occur in models
Update README.txt
Update README.txt
removed some commented out code
removed some commented out code
removed some commented out code
removed some commented out code
Merge pull request #1672 from hschilling/P66944476-allow-recorder-to-record-even-if-failed

P66944476 allow recorder to record even if failed
Quicker close of recorders in run_terminated() for NREL model.