allow the port to be overridden
add example to readme
dont hard code port
add default value for override port
Merge branch 'master' of github.com:boxen/puppet-mysql

Conflicts:
	manifests/db.pp
use port config variable
add missing pipes
Merge remote-tracking branch 'zestia/master'

Allows configuring mysql port. See https://github.com/boxen/puppet-mysql/pull/28.