Import restorecd-5.1-20110529 files.

Prepared to test makefs bug fixes (PR/44114) and not released.

 - apply makefs patches for tools makefs to create proper iso image
Import restorecd-5.1.1-20120109 files.

First trial to build "RestoreUSB" image and not released.

 - use 5.1.1 release binaries and rebuild paneld on it
 - change restorecd script to create a new restoreusb image
  - split or move target files into separate cd/usb/common dirs
Import restorecd-5.1.1-20120112 files.

Announced as the following on port-cobalt:
http://mail-index.netbsd.org/port-cobalt/2012/01/24/msg000522.html

 - fix updated named(8)'s warnings (requires /etc/namedb/managed-keys.bind)
 - fix symlinks to moved files
Import restorecd-5.1.2-20120205 files.

Announced as the following on port-cobalt:
http://mail-index.netbsd.org/port-cobalt/2012/02/11/msg000524.html

 - use 5.1.2 release binaries and rebuild paneld on it