<?xml version="1.0" encoding="UTF-8"?>
<tileset name="tiles-test" tilewidth="16" tileheight="16" tilecount="2" columns="2">
 <image source="tiles-test.png" trans="ff00ff" width="32" height="16"/>
 <tile id="0">
  <properties>
   <property name="baz" value="bap"/>
  </properties>
 </tile>
</tileset>

<?xml version="1.0" encoding="UTF-8"?>
<tileset name="external-tileset" tilewidth="16" tileheight="16" tilecount="2" columns="2">
 <image source="tiles-test.png" trans="ff00ff" width="32" height="16"/>
 <tile id="0">
  <properties>
   <property name="baz" value="bap"/>
  </properties>
 </tile>
</tileset>

Adjust naming of external tileset.
Adjust naming of external tileset.
