bin/rsync-site: inverted the selection of filters by default

by default don't apply any filter. Filters can be enabled by different cmd line
options.
added config/rsync-site-filters
bin/rsync-site: fixed important bug
libexec/htaccess-lock-vhost: don't read pw by default

changed it not to read the user passwords on STDIN by default.
bin/rsync-site: fixed important typo
libexec/archive-vhost-db: added options -n and -e
bin/htpasswd-bulk: adjustment for it to return false on errors
bin/htpasswd-bulk: fixed the dumb-dumb crlf bug