Adds opf_checkpoint_test and related experiment files and data.
Update README to include references to wiki installation instuctions and examples.
Merge pull request #296 from scottpurdy/tests

Adds opf_checkpoint_test and related experiment files and data.
Merge pull request #299 from scottpurdy/readme

Update README to include references to wiki installation instuctions and...
Merge remote-tracking branch 'upstream/master' into cleanup