Significantly reduce the size of the Mass Storage class bootloader, by removing dependencies on large LUFA internal functions.

git-svn-id: http://lufa-lib.googlecode.com/svn@2653 d5102386-fcda-11dd-9fdb-3debd5008f28
Make the Mass Storage bootloader compatible with the original (green) XPLAIN boards.

git-svn-id: http://lufa-lib.googlecode.com/svn@2654 d5102386-fcda-11dd-9fdb-3debd5008f28