add more httpd configuration parameters
invert the refactoring
working httpd.conf on EL6
tested php.conf example
rework auth.tt
rework dirinternals.tt
rename setenvif, extend with other env parameters
refine file_basic
refine global.tt
add kerberos parameters
refine location
refine log
add shibboleth parameters
refine ssl
refine system
refine vhost
refine generic_server
refine httpd_conf
simplify NameVirtualHost
use list for including