* Merge from Debian unstable. Remaining changes: - debian/{control, rules}: Enable PIE hardening. - debian/{control, rules, apache2.2-common.ufw.profile}: Add ufw profiles. - debian/apache2.py, debian/apache2.2-common.install: Add apport hook. - debian/control, debian/ask-for-passphrase, debian/config-dir/mods-available/ssl.conf: Plymouth aware passphrase dialog program ask-for-passphrase. * Dropped changes: - debian/control: Add bzr tag and point it to our tree; this is not really required and just increases the delta.