Set the username/fullname if available.

THis updates #18.
Set the hostname of the build-host.

This closes #18.
Removed Version.pm
  Updated to load the new ::Meta plugin.
Updated test-case to cope with version rename.
Updated to cope with renamed release-version varaible.
Updated to reflect state of the codebase.

Almost time for a new release - I'll await any feedback first
though...
Allow the date/time formats to be specified.

This is just nicer.
Cut down on template-loading duplication.

Both the ::RSS + ::Sitemap module need to load a HTML::Template
object via a string-reference.  Move that code into chronicle2
to avoid duplication, and ensure that all global variables are
populated.
Minor POD/comment updates