rglterm.js: reduce the server polling.

For roguelike games, most output will directly result from and follow
immediately after input from the user.  In other situations, data
should not be expected.

rlgterm.js

@@ -15,30 +15,28 @@ var ajaxstate = {
     this.timerID = window.setTimeout(getData, ms);
   },
   gotdata: function () {
-    this.set(100);
-    this.state = 0;
+    this.set(1000);
+    this.state = 1;
   },
   gotnothing: function () {
     if (this.state == 0) {
-      this.set(100);
+      this.set(1000);
       this.state = 1;
     }
-    else if (this.state == 1) {
-      this.set(300);
+    else {
+      this.set(4000);
       this.state = 2;
     }
-    else if (this.state == 2) {
+  },
+  posted: function (wasdata) {
+    if (wasdata) {
       this.set(1000);
-      this.state = 3;
+      this.state = 1;
     }
     else {
-      this.set(5000);
-      this.state = 3;
+      this.set(200);
+      this.state = 0;
     }
-  },
-  posted: function () {
-    this.set(100);
-    this.state = 0;
   }
 };