Security (CVE-2010-3872) and bug fix update
    
    - Fix possible stack buffer overwrite (CVE-2010-3872)
    - Return 500 instead of segfaulting if application returns no data
    - Explicitly use /var/run/mod_fcgid as "run" directory rather than following
      /etc/httpd/run symlink
    - Conflict with selinux-policy versions prior to EL 5.5 as earlier ones didn't
      work properly
    - Re-order sources
    - Minor documentation updates