[themes] Example phptemplate theme

[Rowan Kerr]

The CSS is empty mainly because I had done this theme as a test to
simplify and expose Drupal/PHPTemplate's main features for designers
at work who weren't super-experienced at digging through CSS. (As DC
quoted on his page)

Placing both sidebar markup sections below the main content is a
definite possibility. One other thing that's come to mind as missing
is more accessibility features like anchors, access keys, etc.

And I forgot to wrap the post information and terms in conditionals in
case they aren't being displayed to avoid printing out empty divs.
Actually, on my wishlist for phptemplate is finer-grained control of
date/time/author variables for a node (instead of just $submitted).

-Rowan