ENH: Implemented handling of SIGCHLD to detect the termination of immediate children.  This allows grandchildren to remain running after the children exit.

ENH: Enabling build/test of Terminal code now that it has been manually tested on several platforms.

ENH: Adding 'Terminal' component to hold support routines for dealing with interactive terminals.  Currently only a cfprintf function is provided to print color messages.

ENH: Improved implementation of FilesDiffer to avoid allocating enough memory for the entire file twice.  Instead using a block-at-a-time comparison.

ENH: add support for win64 for visual studio 2005 ide and nmake, also fix warnings produced by building for win64