add memcached configuration option, small corrections for the build process and add installDrupal.sh file to the release
<IfModule mpm_itk_module>
StartServers <%= @startservers %>
MinSpareServers <%= @minspareservers %>
MaxSpareServers <%= @maxspareservers %>
ServerLimit <%= @serverlimit %>
MaxClients <%= @maxclients %>
MaxRequestsPerChild <%= @maxrequestsperchild %>
</IfModule>