This brings puzzles up-to-date with Simon's tree, along with the
rockbox-specific changes I made. Note that I also got rid of some
of the ugly floating-point code in rbwrappers.c and replaced it
with wrappers for our fixed-point library.
Change-Id: Ibfb79acb15517116a26de1c3ea89e025146b9e2e
This brings puzzles up-to-date with upstream revision
2d333750272c3967cfd5cd3677572cddeaad5932, though certain changes made
by me, including cursor-only Untangle and some compilation fixes
remain. Upstream code has been moved to its separate subdirectory and
future syncs can be done by simply copying over the new sources.
Change-Id: Ia6506ca5f78c3627165ea6791d38db414ace0804