f:apply implemented

Although the general concept was independently discovered, the finer details
of this implementation are motivated by the excellent, comprehensive work of
Dimitre Novatchev[0].

For those of us who either can't, or don't wish to, abaondon XSLT.

[0]: http://conferences.idealliance.org/extreme/html/2006/Novatchev01/EML2006Novatchev01.html