- Added ForceChangeLevel and Map History to nextmap api

- Changed base plugins to use new api
- Added sm_maphistory command to nextmap.sp

--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%402413

plugins/basecommands/map.sp

@@ -109,7 +109,7 @@ public Action:Timer_ChangeMap(Handle:timer, Handle:dp)
 	ResetPack(dp);
 	ReadPackString(dp, map, sizeof(map));
 
-	ServerCommand("changelevel \"%s\"", map);
+	ForceChangeLevel(map, "sm_map Command");
 
 	return Plugin_Stop;
 }