Version bumps glib and xerces

Hi!

I've noticed that glib and xerces would need version bumpsand download path fixes:
glib version to: 2.16.3
glib path to: http://ftp.gnome.org/pub/gnome/sources/glib/2.16/

xerces version to 2.8.0
xerces download path to:
ftp://www.ibiblio.org/pub/mirrors/apache/xerces/c/sources/ (couldn't find a "generic" apache mirror, and this one seems to be reasonably reliable)

BTW, the xerces makefile is in pretty bad shape... if some one could give me a quick rundown on how the ppatches shall look like, i'll do my best to provide one.

Greetz Joe

Sepp "ZaP" Holzmayr

please reply to: zentrale.at.work at gmail.com
"Never underestimate the bandwidth of a freight train full of DAT tapes. 
Only the round-trip is a little suboptimal."

Don't mind xerces at the moment, it has bigger problems than just a version bump, as far as i can tell.

Sepp "ZaP" Holzmayr

please reply to: zentrale.at.work at gmail.com
"Never underestimate the bandwidth of a freight train full of DAT tapes. 
Only the round-trip is a little suboptimal."