Fixed startpos not saving

Will now load properly from a save game preventing respawning at the wrong player starts.

src/g_game.cpp

@@ -96,6 +96,8 @@
 static FRandom pr_dmspawn ("DMSpawn");
 static FRandom pr_pspawn ("PlayerSpawn");
 
+extern int startpos, laststartpos;
+
 bool WriteZip(const char* filename, const FileSys::FCompressedBuffer* content, size_t contentcount);
 bool	G_CheckDemoStatus (void);
 void	G_ReadDemoTiccmd (ticcmd_t *cmd, int player);
@@ -2146,7 +2148,9 @@ void G_DoLoadGame ()
 
 	arc("ticrate", time[0])
 		("leveltime", time[1])
-		("globalfreeze", globalfreeze);
+		("globalfreeze", globalfreeze)
+		("startpos", startpos)
+		("laststartpos", laststartpos);
 	// dearchive all the modifications
 	level.time = Scale(time[1], TICRATE, time[0]);
 
@@ -2434,6 +2438,10 @@ void G_DoSaveGame (bool okForQuicksave, bool forceQuicksave, FString filename, c
 		savegameglobals("leveltime", level.time);
 	}
 
+	savegameglobals("globalfreeze", globalfreeze)
+					("startpos", startpos)
+					("laststartpos", laststartpos);
+
 	STAT_Serialize(savegameglobals);
 	FRandom::StaticWriteRNGState(savegameglobals);
 	P_WriteACSDefereds(savegameglobals);