changed alternate to alternate1 and ref3 to alternate2
Merge pull request #147 from gleckler1/issue1_improve_alternate_obs_naming

changed alternate to alternate1 and ref3 to alternate2 - Looks good to me
Merge pull request #150 from PCMDI/issue_148_cleanup_test_suite

Issue 148 cleanup test suite - LGTM
sorting vars, because glob gets file in randomish order
Merge branch 'master' into issue_148_cleanup_test_suite
updated png with ordered vars