Slight rearranging in support of more flexibility to get around issues with
changed function signatures for Houdini 13.

Added a function to generate a double (fpreal) array.
Catch load warnings.
Unicode removal now happens automatically on json read using object_hook and
ht.utils function.

Fixed incorrect docstring.
Adding a custom version of Python's argument parser.  This parser allows
for disabling abbreviations and slightly different help flags.
Adding a simple class to handle styled shell output.