update clawpack to 5.2.2
Merge pull request #493 from hashdist/ahmadia/update_openblas

Update openblas to 0.2.12
Merge pull request #494 from rjleveque/patch-1

update clawpack to 5.2.2
Merge remote-tracking branch 'origin/master' into ahmadia/roams_fixes
Fix config.py for Linux2