code change for rh7 stateless support
add dracut support scripts for dracut-033. Most of them are copied from dracut
use ip command to replace ifconfig in xcatroot for diskless on rh3
for rh7, the initrd for stateless has to been built first to make the installkernel cfg file added first
rh7 diskless support that don't cfg tmp in fstab
rh7 statelite support. create /etc/sysconfig/network-scripts/ifcfg-ethx for statelite node
rh7 statelite support. remove the root dir from fstab to avoiding the remount which overwrite the root dir to rw
rh stateless support. remove the tmp and root dir mount requirement in fstab. They can be handled correctly by dracut and dracut cfg file
defect 4133: transfer the xml specific character which starts with & to general format
defect 4134: missing the use of xCAT::SvrUtils in conserver.pm so that when makeconservercf walks into error path to call SverUtils->sendmsg, an code error is displayed
defect 4125:support to have parameters in niccustomscripts attribute
defect: 4133: fix the code to transfer escape character for the output of getpostscript.awk
defect 4133: continue the fix for the xml escape char conversion when getting mypostscript