[phpgrabcomics-announce] PostgreSQL backend support

I looked through the TODO / other documents and saw nothing to this
effect, so I figure this is a kosher question to ask.

Is there any objection / advice on where to start for writing a
PostgreSQL backend alongside a MySQL backend?  I'd rather use it for my
server.

Looking at the code, it seems that the database layer could be easily
abstracted to this effect.  Any objections / comments?
--=20
Jim Wyllie
Master's Student
IRG Lab, Dept. of EE and CS
Ohio University