fix logic bug in trivial-validate when rule fails XML validate
make trivial-validate support --quiet (no warnings, only failures)
new rule-validating precommit hook from jpds/master
trivial-validate --quiet; also, it can exit 3, not just 1
Sciecne Direct is horribly broken by mixed content.
Merge branch '3.0' of https://git.torproject.org/https-everywhere into 3.0