Apply Baker's fix for cross-map demo playback (http://forums.inside3d.com/viewtopic.php?f=3&t=2397).

With that alone, the console would come down and slide up when the map changes in a demo.
I added a SCR_BeginLoadingPlaque() call in CL_ParseServerInfo, only done during demo playback, which shows the loading plaque and prevents the console from appearing and sliding up.

git-svn-id: svn://svn.code.sf.net/p/quakespasm/code/trunk/quakespasm@976 af15c1b1-3010-417e-b628-4374ebc0bcbd

Quake/cl_parse.c

@@ -261,6 +261,12 @@ void CL_ParseServerInfo (void)
 	char	sound_precache[MAX_SOUNDS][MAX_QPATH];
 
 	Con_DPrintf ("Serverinfo packet received.\n");
+
+// ericw -- bring up loading plaque for map changes within a demo.
+//          it will be hidden in CL_SignonReply.
+	if (cls.demoplayback)
+		SCR_BeginLoadingPlaque();
+
 //
 // wipe the client_state_t struct
 //

Quake/host_cmd.c

@@ -972,6 +972,9 @@ This is sent just before a server changes levels
 */
 void Host_Reconnect_f (void)
 {
+	if (cls.demoplayback)	// cross-map demo playback fix from Baker
+		return;
+
 	SCR_BeginLoadingPlaque ();
 	cls.signon = 0;		// need new connection messages
 }