installation to ${PREFIX}/www/data.default. "data.default" was an artifact
of a long obsolete version of the Apache port. Put installation directory
under control of a variable $BUGZILLADIR instead. Carry through to
pkg-plist via a pragma.
- Bump $PORTREVISION.
* use ${INSTALL} directly instead of ${INSTALL_DATA} to preserve
exec permissions for scripts
* add post-install target to display pkg-message
* rewrite pkg-message to give minimal quick setup instructions