Some minor cleanups of echocfg

1) Initialize saverobot.name since this is checked unconditionally.
   This has a side effect of initializing everything else, but name
   is the only thing that actually matters.
2) Add a bar to the global settings menu.
   Previously, if you scrolled near the bottom and selected an option,
   after changing the option, you would jump up to the last item on
   the initial screen.
3) Fix the AreaMgr Support default value to be the current, not the
   opposite of current.
4) Use the correct variable for EchoMail Relay Filtered Messages
   setting default.

src/sbbs3/echocfg.c

@@ -68,6 +68,7 @@ static char* logLevelStringList[]
 void global_settings(void)
 {
 	static int global_opt;
+	static int global_bar;
 
 	while(1) {
 		int i = 0;
@@ -223,7 +224,7 @@ void global_settings(void)
 			"    Default: Supported\n"
 			;
 
-		int key = uifc.list(WIN_ACT|WIN_SAV, 0, 0, 0, &global_opt,0, "Global Settings", opt);
+		int key = uifc.list(WIN_ACT|WIN_SAV, 0, 0, 0, &global_opt, &global_bar, "Global Settings", opt);
 
 		switch(key) {
 
@@ -730,7 +731,9 @@ int main(int argc, char **argv)
 	nodecfg_t savnodecfg;
 	arcdef_t savarcdef;
 	struct fido_domain savedomain;
-	struct robot saverobot;
+	struct robot saverobot = {
+		.name = ""
+	};
 	BOOL door_mode=FALSE;
 	unsigned int u;
 	char	sysop_aliases[256];
@@ -1384,7 +1387,7 @@ int main(int argc, char **argv)
 	"~ AreaManager Support ~\n\n"
 	"If you wish for this node to be able to remotely query or change their\n"
 	"configuration via `AreaManager` (AreaFix) NetMail messages, set to option to `Yes`.\n";
-								k = cfg.nodecfg[i].areamgr;
+								k = !cfg.nodecfg[i].areamgr;
 								switch(uifc.list(WIN_MID|WIN_SAV,0,0,0,&k,0
 									,"AreaManager Support",uifcYesNoOpts)) {
 									case 0:	cfg.nodecfg[i].areamgr = true;	uifc.changes=TRUE; break;
@@ -2201,7 +2204,7 @@ int main(int argc, char **argv)
 							}
 							break;
 						case 10:
-							k = !cfg.check_path;
+							k = !cfg.relay_filtered_msgs;
 							switch(uifc.list(WIN_MID|WIN_SAV,0,0,0,&k,0
 								,"Relay Filtered EchoMail Messages",uifcYesNoOpts)) {
 								case 0:	cfg.relay_filtered_msgs = true;		break;