new "paginate" branch

[Ben Pfaff]

Hi John.

On IRC you've mentioned that to implement GTK+ printing the
output API needs to be able to break output up into a
page-at-a-time operation.  I've now refactored PSPP's Cairo
output driver so that it can do that.  I've pushed it to a new
"paginate" branch for you to look at.  Please look it over.  If
it seems suitable for basing the GTK+ printing code upon, then
I'll push it to master.

Ben
-- 
"Note that nobody reads every post in linux-kernel.   In fact, nobody who
 expects to have time left over to  actually do any real kernel work will
 read even half.  Except Alan Cox, but he's actually not human, but about
 a thousand gnomes working in under-ground caves in Swansea." --Linus