Tweaked internal naming in cx.c
Moved cxNow() in cx.c to utils.c as nowd().
New version of mx.[ch].
More work on new version of mx.[ch]
Still working on mx.[ch]
Modified udp.[ch]

Removed the host and port to bind to from udpSocket, and also removed
the udpConnect function. udpSocket now simply creates a UDP socket and
you can use netBind to bind it to an address and netConnect to set a
default destination address.
Testing mx.c and mx.h, which are now more or less complete.
Still testing mx.[ch].
More tests for mx.[ch]
Reduced some sleeps in cx test code.
Added lots of comments to mx.c, tweaked comments in mx.h.
Added test for bufUnpack.
Added small pause between connections to server 1 and 2.
Tweaking comments and Makefile.
Added tests for mxOnConnect and mxOnDisconnect.
Fixed some problems building on a 32-bit platform.
More fixes for i386 platform.