Make it possible to disable the generation of any timestamp.

[chrisdutz]

Usually you can disable the generation of a date or timestamp by setting:

  <publishDate position="none"/>

Unfortunately the timestamp in the template header is always output. This is causing problems with Apache's gitpubsub system as every file changes with every build. I updated the template to only output the timestamp if the publishDate position is not set to none.

[chrisdutz]

Any reason not to merge this?

[olamy]

fixed here https://github.com/olamy/reflow-maven-skin/pull/12