run_tests.sh: fix double percent sign in brokenness summary
README.md: document failure levels ("broken" etc)
Update README.md: 'run_tests.sh' doesn't run all tests. Fixes #68.

(When called without arguments, that is.)
Merge pull request #70 from neuschaefer/all

Update README.md: 'run_tests.sh' doesn't run all tests. Fixes #68.
add corkami zip files
arf
adding corkami zip archives #62
modify to fit # 742 issue