- default config tweaks:
    harden httpd.conf w.r.t. .htaccess restriction (#591293)
    load mod_substitute, mod_version by default
    drop proxy_ajp.conf, load mod_proxy_ajp in httpd.conf
    add commented list of shipped-but-unloaded modules
    bump up worker defaults a little
    drop KeepAliveTimeout to 5 secs per upstream
    - fix LSB compliance in init script (#522074)
    - bundle NOTICE in -tools
    - use init script in logrotate postrotate to pick up PIDFILE
    - drop some old Obsoletes/Conflicts