* modified isolinux/isolinux.cfg
   - add Haduzilla preseed.cfg
 * add preseed/hadu.seed
 * add preseed/haduzilla-inst
 * add preseed/haduzilla
 * add preseed/drbl-hadoop
 * add preseed/drbl-hadoop-mount-disk
   - migrate from old 'eagle' project @ 2011 Dec.