Also, fix the issue pointed out by Alam.

Improved fix by changing the formula for how memory is allocated to arbitrary sample rate conversion.

And fix it on FreeBSD, where _BIG_ENDIAN is not a flag indicating
big endian machine, but a constant to compare _BYTE_ORDER to.

Multi-Property FOF's have their multiple side properties display in
OpenGL.

Because apparently people don't like them like that.

(Disclaimer: I don't know C at all)

Screen flipping in OpenGL is no longer done by inverting the screen
polygons.

Player spin frames on MD2's interpolate correctly when moving slowly.