Still more IOUtilities verification...

Fixed some latent bugs that occurred when dealing with state files.
Added a smattering of conditionals to make use of attempts to
gracefully exit when a fatal error is encountered. Tweaked production
output to read better/more informatively. Verified mathematical
calculations during rogue handling of pointers in pullInData… method.
Fixed mistaken reassignments/overwriting of object-wide global
variables. Tweaked construction of some inner-method arrays to more
closely fit original design (and hopefully sidestep issues), while
improving safety checks. Repaired broken safety check for nonexistent
input configuration file. Repaired/removed broken calls to size() and
sizeof() methods which triggered failsafes. Properly enabled fallback
methods when non-essential files are missing, and provides extra output
to indicate such. Cleaned up formatting of IOUTIL_DEBUG entries.
Disabled declaration of unused variables & methods.