Fix crash with null pointer in SV_AreaEdicts_r().

Fix crash with null activator in G_UseTargets().
Tweak descripton of cvar r_modulate.
Update change log for new layout script commands.

game/g_utils.c

@@ -208,7 +208,7 @@ void G_UseTargets (edict_t *ent, edict_t *activator)
 //
 // print the message
 //
-	if ((ent->message) && !(activator->svflags & SVF_MONSTER))
+	if ( (ent->message) && (activator) && !(activator->svflags & SVF_MONSTER) )
 	{
 //		Lazarus - change so that noise_index < 0 means no sound
 		safe_centerprintf (activator, "%s", ent->message);

kmquake2_changelog.txt

@@ -61,6 +61,8 @@ Changes as of v0.20 update 8:
 - Added changeable gl_clear color controlled by cvars r_clearcolor_r, r_clearcolor_g, and r_clearcolor_b.
 	Values are normalized (0-1).
 	
+- Added ifeq, ifneq, ifgt, ifge, iflt, ifle, ifbit, and ifnbit layout script commands.
+	
 - Added a check to prevent game code from sending unicasts to non-present clients (i.e. bots).  This would
 	previously cause a fatal server error.
 	

renderer/r_main.c

@@ -995,7 +995,7 @@ void R_Register (void)
 	Cvar_SetDescription ("r_particle_max", "Sets maximum clipping distance for particle rendering.");
 
 	r_modulate = Cvar_Get ("r_modulate", "1", CVAR_ARCHIVE );
-	Cvar_SetDescription ("r_modulate", "Sets scale for lightmaps.");
+	Cvar_SetDescription ("r_modulate", "Sets brightness scale for lightmaps.");
 	r_log = Cvar_Get( "r_log", "0", 0 );
 	Cvar_SetDescription ("r_log", "Enables logging of OpenGL API calls.");
 	r_bitdepth = Cvar_Get( "r_bitdepth", "0", 0 );

server/sv_world.c

@@ -368,7 +368,8 @@ void SV_AreaEdicts_r (areanode_t *node)
 	else
 		start = &node->trigger_edicts;
 
-	for (l=start->next  ; l != start ; l = next)
+//	for (l=start->next  ; l != start ; l = next)
+	for (l = start->next; l && (l != start); l = next)	// Knightmare- catch null 'l' pointer
 	{
 		next = l->next;
 		check = EDICT_FROM_AREA(l);