A few UI fixes; improve tab complete algorithm

lib/user.js

@@ -83,6 +83,10 @@ function User(socket) {
                 }
             }
         });
+
+        if (self.global_rank >= 255) {
+            self.initAdminCallbacks();
+        }
     });
 }
 
@@ -407,6 +411,32 @@ User.prototype.initChannelCallbacks = function () {
     });
 };
 
+User.prototype.initAdminCallbacks = function () {
+    var self = this;
+    self.socket.on("borrow-rank", function (rank) {
+        if (self.inChannel()) {
+            if (typeof rank !== "number") {
+                return;
+            }
+
+            if (rank > self.global_rank) {
+                return;
+            }
+
+            if (rank === 255 && self.global_rank > 255) {
+                rank = self.global_rank;
+            }
+
+            self.rank = rank;
+            self.socket.emit("rank", rank);
+            self.channel.sendAll("setUserRank", {
+                name: self.name,
+                rank: rank
+            });
+        }
+    });
+};
+
 User.prototype.whenLoggedIn = function (fn) {
     if (this.loggedIn) {
         fn();