Edit installers so they create backups of both the tftp and web directories so new files can be added.  Edit FOGFTP back to original because it breakings imaging.  Update undionly.kpxe so it operates properly.

git-svn-id: https://svn.code.sf.net/p/freeghost/code/trunk@1568 71f96598-fa45-0410-b640-bcd6f8691b32
ADD README File.