Acquire file reader library, created by Chris Nicolai, November 2009.
Thanks to Bruxton for sharing AcquireFormat.h.

My aim was to read sampled data, so I have ignored control and aperiodic channels.
This library also assumes little-endian architecture (e.g. x86).  It has been compiled
and tested on Win32 (XP, Vista) and Linux (Ubuntu i386, x86_64).