Fix user account status for manually blocked users

User account status in web interface is displayed incorrectly
if account is disabled (or enabled) via ssh.

Test manually:
1. Create new user using web interface
2. Change user account expiration date via ssh
    chage -E 1970-01-01 <new user>
  User account is blocked
3. Check user status in web interface.
 Blocked user account status should be displayed as "Disabled".

Change-Id: I15e93a87653289b5ba76313895da0cf7e5dd2c7c
Signed-off-by: Denis Zlobin <zlobin.d.al@gmail.com>
diff --git a/users.cpp b/users.cpp
index 8d6df6a..3440b94 100644
--- a/users.cpp
+++ b/users.cpp
@@ -140,7 +140,7 @@
  */
 bool Users::userEnabled(void) const
 {
-    return UsersIface::userEnabled();
+    return manager.isUserEnabled(userName);
 }
 
 void Users::setUserEnabled(bool value)