Added help output and positional parameter support

[ ADDED ]  Positional parameters are now processed.  The parameters
available are:
    -j[N], --jobs[=N]
    -n, --no-color
    -v, --version
    -h, --help

[ ADDED ]  Short and long help with the long help formatted as a man
page

[ ADDED ]  The user is able to dynamically specify the directory to
process music image files as well as the target directory where the
split files will reside

[ ADDED ]  A check to make sure the user is running BASH 4 or greater

[ ADDED ]  Various commands to incorporate the above positional
parameters