Initialize the xmpp connection config in a background thread.
On android > 3.x network operations on the main thread crash the application.
This move the dns request made by the ConnectionConfiguration in another
thread by lazily initializing the XMPPConnection
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@+id/login_menu_login"
android:visible="true"
android:title="@string/login_menu_login"
android:icon="@drawable/ic_menu_login" />
<item android:id="@+id/login_menu_settings"
android:visible="true"
android:title="@string/login_menu_settings"
android:icon="@android:drawable/ic_menu_manage" />
<item android:id="@+id/login_menu_about"
android:visible="true"
android:title="@string/login_menu_about"
android:icon="@android:drawable/ic_menu_help" />
</menu>