Run Coverity only on selected days of the week.
Merge pull request #19 from fwalch/coverity

Run Coverity only on selected days of the week.
Improve vimpatch report styling.
Merge pull request #11 from fwalch/style-vimpatch-report

Improve vimpatch report styling.
Update clang version.
Merge pull request #21 from fwalch/fix-clang

Update clang version.
Add user docu build.