updates to the README
create pidfile and spec
update bday.rb to use the pidfile
remove reference to the pidfile in bday.rb
have the pid file created when started
changed the location of the pid file because /var/run isn't world writable
add the exit to the parent process after the child has been created
have the pid file removed when the process is killed
add reading the pid from the pidfile
only start watching if not already
update the README.md to reflect the use of existing pid file