Fix preference category id; refactor one class to internal
diff --git a/bundles/org.eclipse.wst.xsd.ui/plugin.xml b/bundles/org.eclipse.wst.xsd.ui/plugin.xml
index 5295c54..3209a6b 100644
--- a/bundles/org.eclipse.wst.xsd.ui/plugin.xml
+++ b/bundles/org.eclipse.wst.xsd.ui/plugin.xml
@@ -102,7 +102,7 @@
    <extension point="org.eclipse.ui.preferencePages">
       <page
             name="%_UI_XML_SCHEMA_PREFERENCE"
-            category="org.eclipse.wst.sse.ui.preferences"
+            category="org.eclipse.wst.sse.ui.internal.provisional.preferences"
             class="org.eclipse.wst.xsd.ui.internal.preferences.XSDPreferencePage"
             id="org.eclipse.wst.xsd.ui.internal.preferences.XSDPreferencePage">
       </page>
@@ -210,8 +210,8 @@
          point="org.eclipse.wst.sse.ui.sourcevalidation">
       <validator
             scope="total"
-            class="org.eclipse.wst.xsd.ui.reconcile.DelegatingSourceValidatorForXSD"
-            id="org.eclipse.wst.xsd.ui.reconcile.DelegatingSourceValidatorForXSD">
+            class="org.eclipse.wst.xsd.ui.internal.validation.DelegatingSourceValidatorForXSD"
+            id="org.eclipse.wst.xsd.ui.internal.validation.DelegatingSourceValidatorForXSD">
   	<contentTypeIdentifier
                id="org.eclipse.wst.xsd.contentmodel.xsdsource">
             <partitionType