- scripts/schhist2web: show a vertial dash in places where a sheet didn't
change
- scripts/schhist2web: new environment variable SCHHIST_TITLE to set the
title
- scripts/schhist2web: new environment variable SCHHIST_HOME_URL for the
URL the title links to
- scripts/schhist2web: new environment variable SCHHIST_COMMIT_TEMPLATE
for a template to link to the commit ({} gets replaced with the hash)
- scripts/Makefile: schematics history build example for ben-wpan/atrf
- scripts/schhist2web: at the very end, don't exit 1 on success
