Load lines before nicklist

Nicklist is not nearly as important as the actual lines, load them first for better perceived performance. Parsing the nicklist can take a noticeable amount of time for channels with thousands of occupants.

This also improves/fixes the nicklist emptiness check

js/models.js

@@ -147,13 +147,25 @@ models.service('models', ['$rootScope', '$filter', function($rootScope, $filter)
             }
         };
 
+
+        // Check if the nicklist is empty, i.e., no nicks present
+        // This checks for the presence of people, not whether a
+        // request for the nicklist has been made
         var isNicklistEmpty = function() {
             for (var obj in nicklist) {
-                return false;
+                if (obj !== 'root') {
+                    return false;
+                }
             }
             return true;
         };
 
+        var nicklistRequested = function() {
+            // If the nicklist has been requested but is empty, it
+            // still has a 'root' property. Check for its existence.
+            return nicklist.hasOwnProperty('root');
+        };
+
         return {
             id: pointer,
             fullName: fullName,
@@ -179,7 +191,8 @@ models.service('models', ['$rootScope', '$filter', function($rootScope, $filter)
             addToHistory: addToHistory,
             getHistoryUp: getHistoryUp,
             getHistoryDown: getHistoryDown,
-            isNicklistEmpty: isNicklistEmpty
+            isNicklistEmpty: isNicklistEmpty,
+            nicklistRequested: nicklistRequested
         };
 
     };