Printing support

I figured since we've got all that Fl_Printer stuff anyway, maybe we  
should put it to good use.  So here's a (very early) patch to add printing  
support to Dillo:
   http://dillo-win32.sourceforge.net/patches/30-print.diff

It's turned on with a ./configure option (and disabled by default), so you  
don't need to link in Fl_Printer if you don't want to.  I'm not looking to  
get it into mainline yet, mostly I just want to show what I've got so far  
in case anyone is interested.

Here's an example of its output:
   http://dillo-win32.sourceforge.net/files/dilloprint.pdf

Let me know what you think!

Cheers,
~Benjamin