connect IOUtilities to the rest of the code...or at least to one part of the demo.

IOUtilities now connects to the demo written by Tavis & Nathan. So that
part of the configuration file reading-in process works. Many INCLUDE
statements were changed, many namespace uses might have been altered,
and I apologize for the hackneyed approach to making this work.
Merge branch 'master' of https://github.com/joshm1229/MCGPU

Conflicts:
	src/Applications/metrosim
...general GitHub weirdness forcing a commit before re-sync.