Add Gentoo init script to conf directory.

Adding start of a Gentoo init script for the pmort daemon to
conf/init.d.
Remove previous Gentoo initscript.
Move default logrotate configuration to conf.

Adding a default logrotate configuration to conf.  This matches the
default logging configuration but does not need to be installed on the
system if the package maintainer chooses not to.
Move default cron for pmort to conf.

The default cron file removes any statistics files older than one day.
Thus, by default it will only keep one day of pmort information.
Add variable for days to keep in cron file.
Move configuration file to conf directory.
Remove COPYING with old licensing.
Rmeove pylintrc file.  We use flake now.
Change extension on README to rst.
Update README contents with a more complete description.
Update setup configuration.

Revamp the setup configuration to use setuptools.