- Use multibuild to build docu with correct paths and available
features.
- common-session: move pam_systemd to first position as if the
file would have been generated with pam-config
- Add vendordir fixes and enhancements from upstream:
- 0001-Include-pam_xauth_data.3.xml-in-source-archive-400.patch
- 0002-Only-include-vendordir-in-manual-page-if-set-401.patch
- 0003-Use-vendor-specific-limits.conf-as-fallback-402.patch