Add coverage reporting and upload
Tweak
Spew the URL for the coverage report
Fix image to be the right one
Add py script to make link go to coverage report
Revert "Add py script to make link go to coverage report"

This reverts commit 6a813c4593bfae257336e8d6b8f9ab0bfb851983.
Merge pull request #91 from dimagi/coverage-artifacts

Coverage artifacts