Log Message:
Move patch-src_glu_sgi_libtess_sweep.c from MesaLib to here since this
package is built independently now.
Bump PKGREVISON.

The commit message in MesaLib read:
date: 2015-01-29 23:35:43 +0100;  author: nat;  state: Exp;
Fix segfaults and crashing with applications that use libGLU.