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

<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" type="line">
<stroke android:width="1dp"
		android:height="2dp"
		android:color="#D6F94C" />
	<size android:height="1dp" />
</shape>