Changed example parameter from itemtype to item_type as api docs

brooklyn/brooklyn.collection.getImages.xml

@@ -4,7 +4,7 @@
     <author>Daniel Pett</author>
     <description>Search Brooklyn Museum's collections database for images</description>
     <documentationURL>http://www.brooklynmuseum.org/opencollection/api/docs/request/collection.getImages</documentationURL>
-    <sampleQuery description="Retrieve an object by type and id number">select * from {table} where itemtype="object" and item_id="4174" and api_key='{key}';</sampleQuery>
+    <sampleQuery description="Retrieve an object by type and id number">select * from {table} where item_type="object" and item_id="4174" and api_key='{key}';</sampleQuery>
 </meta>
 <bindings>
  <select itemPath="response.images" produces="XML">