Fixed history bug.

 o commandResult calls newPromptBox which sets promptText to the empty string
 o addToHistory uses the value of promptText to push into the history array
 o thus, whenever commandResult was called before addToHistory, an empty
   string would be placed on the history array

Now, addToHistory is always called before commandResult so it pushes the
command to the history array in all cases.

demo.html

@@ -53,7 +53,7 @@
            welcomeMessage:'Enter some JavaScript expressions to evaluate.'
          });
          controller2.promptText('5 * 4');
-         /* Second console */
+         /* Third console */
          var console3 = $('<div class="console2">');
          $('body').append(console3);
          console3.console({
@@ -63,9 +63,7 @@
              else return true;
            },
            commandHandle:function(line,report){
-               setTimeout(function(){
-                  report(line);
-               },500);
+               report(line);
            },
            animateScroll:true,
            promptHistory:true

jquery.console.js

@@ -346,26 +346,21 @@
         // Handle a command
         function handleCommand() {
             if (typeof config.commandHandle == 'function') {
+                addToHistory(promptText);
                 var ret = config.commandHandle(promptText,function(msgs){
                     commandResult(msgs);
                 });
                 if (typeof ret == 'boolean') {
                     if (ret) {
                         // Command succeeded without a result.
-                        addToHistory(promptText);
                         commandResult();
                     } else {
-                        addToHistory(promptText);
                         commandResult('Command failed.',
                                       "jquery-console-message-error");
                     }
                 } else if (typeof ret == "string") {
-                    addToHistory(promptText);
                     commandResult(ret,"jquery-console-message-success");
-                } else if (typeof ret == 'undefined') {
-                    addToHistory(promptText);
                 } else if (ret.length) {
-                    addToHistory(promptText);
                     commandResult(ret);
                 }
             }