Added SendGetGroupInfo

and fixed some nullPointerExceptions ^^
Added SendGetGroups and SendGetOwningGroups

Need
sleep
now
Added SendGetParticipants

Eyes
closing
fuck
Added SendGetPrivacyList

Gets list of blocked contacts
Added SendGetServerProperties

Very cool stuff!
rx  <iq from="s.whatsapp.net" id="1371771150-1" type="result">
rx    <props version="1">
rx      <prop name="timeout" value="300"></prop>
rx      <prop name="audio" value="0"></prop>
rx      <prop name="checkmarks" value="0"></prop>
rx      <prop name="newmedia" value="0"></prop>
rx      <prop name="image_max_kbytes" value="10240"></prop>
rx      <prop name="image_quality" value="75"></prop>
rx      <prop name="image_max_edge" value="800"></prop>
rx      <prop name="media" value="16"></prop>
rx      <prop name="broadcast" value="25"></prop>
rx      <prop name="max_subject" value="25"></prop>
rx      <prop name="max_participants" value="51"></prop>
rx      <prop name="max_groups" value="50"></prop>
rx    </props>
rx  </iq>