Many background changes in this release. Better handling of changes to the MAC.info file, and better creation of the dhcpd.conf file. Now using the concept of "group"s in the dhcpd.conf file, and more options have been added to pxelinux so that a shared pxelinux.cfg file can be used for same node types (rather than one pxelinux.cfg file per node).
This release finally moves away from the idea of symlinks and ramdisks, and moves forward to unionfs. UnionFS allows the software to mount a read-only NFS root filesystem and merge it with a writeable RAM filesystem. Therefore, it can boot an unmodified image and still have the client node think that it has full write access.
