Perl scripts linked into /usr/local/bin or anyother directory needs
to use FindBin qw($RealBin) instead of just FindBin qw($Bin). Realpath
will find the absolute path to where the script actually lives and the
pm directory that holds the perl modules.
Changed all header file once include variables to follow the same naming
convention and not start with any underscores. Also deleted old
incorrect copyright notices. Also removed $Id: tags from all files.
Fixes#14. Fixes#22.