Don't use scare quotes when displaying the username.

See http://en.wikipedia.org/wiki/Scare_quotes for details.

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>

src/octoprint/static/js/app/viewmodels/loginstate.js

@@ -10,7 +10,7 @@ function LoginStateViewModel() {
 
     self.userMenuText = ko.computed(function() {
         if (self.loggedIn()) {
-            return "\"" + self.username() + "\"";
+            return self.username();
         } else {
             return gettext("Login");
         }