Issue #46 - Add coverage summary for each changeset
Issue #46 - Add coverage summary for each changeset

Until now we would only fetch the coverage for the tipmost changeset.

With this change every changeset contains information about code coverage
and if it should be linkify or hidden (instead of being stored at the push level).

LinkaiQi/firefox-code-coverage-frontend,LinkaiQi/firefox-code-coverage-frontend