Announcing Q7B31 Q4D30 for XO-4 XO-1.75

[James Cameron]

http://wiki.laptop.org/go/OLPC_Firmware_q7b31 for XO-4
http://wiki.laptop.org/go/OLPC_Firmware_q4d30 for XO-1.75

* fix for booting a school server with an NTFS filesystem on USB
  drive, #12678, thanks to Braddock Gaskill at Internet In A Box for
  the reproducer,

* an XO-4 device tree fix for Linux audio driver, to improve
  performance of Pygame activities such as Physics and Maze, #12677,

* an XO-1.75 fix to retain the file name part of the /chosen bootpath
  property, #12672.

Boot tested on XO-1.75 (13.1.0-36) and XO-4 (13.1.0-36 and 13.2.0-6).

-- 
James Cameron
http://quozl.linux.org.au/