Improved logging

Now requires our management_logging module.  Much simpler though!
Updated executable

Updated the executable.  Now requires that the management_logging
module is installed.
Check for management_logger

Now checks whether Management Logger is installed before continuing.
Logging is optional

Logging can now be disabled with the simple use of the -l switch.

Minor documentation update.
Versatility

Changed a little bit of code for simplicity’s sake.
Clarity

A little bit of clarity in case the logging is not correctly imported.
Merge pull request #33 from univ-of-utah-marriott-library-apple/develop

Development integration