You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allfileusages gafcontinue="BeerBrewing-20130407-01.jpg|1022" />
  </query-continue>
  <query>
    <pages>
      <page pageid="343" ns="0" title="Wireless Battle Mesh v5 prep meeting 002" />
      <page pageid="443" ns="0" title="Wireless Battle Mesh v5 prep meeting 003" />
      <page pageid="538" ns="0" title="Wireless Battle Mesh v5 prep meeting 004" />
      <page pageid="634" ns="0" title="Wireless Battle Mesh v5 prep meeting 005" />
      <page pageid="646" ns="0" title="Wireless Battle Mesh v5 prep meeting 006" />
      <page pageid="654" ns="0" title="Wireless Battle Mesh v5 prep meeting 007" />
      <page pageid="670" ns="0" title="Wireless Battle Mesh v5 prep meeting 008" />
      <page pageid="705" ns="0" title="BattleMeshv5" />
      <page pageid="1236" ns="0" title="Amartolino 2013" />
      <page pageid="1249" ns="0" title="Beaglebone Black" />
    </pages>
  </query>
</api>