Merge branch 'mesa_7_6_branch' into mesa_7_7_branch

Conflicts:
	progs/demos/projtex.c
	progs/xdemos/glxinfo.c
	src/mesa/main/version.h

To fix the confilicts in projtex.c and glxinfo.c I just took the code from
mesa_7_6_branch.  The conflicts seem to have occured from cherry-picks from
mesa_7_7_branch to mesa_7_6_branch followed by commmits just to
mesa_7_6_branch.

progs/fp/Makefile

@@ -17,6 +17,7 @@ SOURCES = \
 	tri-depth2.c \
 	tri-depthwrite.c \
 	tri-depthwrite2.c \
+	tri-inv.c \
         tri-param.c \
         fp-tri.c
 

progs/fp/tri-inv.c

@@ -56,7 +56,7 @@ static void Key(unsigned char key, int x, int y)
       case 27:
 	exit(1);
       default:
-	return;
+	break;
     }
 
     glutPostRedisplay();