Add an equals method to Contact.
A contact is equals to an other if they got the same bare Jid.
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@+id/settings_menu_create_account"
android:visible="true"
android:icon="@drawable/ic_menu_invite"
android:title="@string/settings_menu_create_account" />
<item android:id="@+id/settings_menu_privacy_lists"
android:visible="false"
android:title="@string/settings_menu_privacy_lists"
android:icon="@drawable/ic_menu_blocked_user" />
</menu>