SLING-3629 - Provide an XML formatter for content.xml files

Update folling review comments from @kwin
diff --git a/eclipse/eclipse-ui/plugin.xml b/eclipse/eclipse-ui/plugin.xml
index 80186af..a37b1a4 100644
--- a/eclipse/eclipse-ui/plugin.xml
+++ b/eclipse/eclipse-ui/plugin.xml
@@ -427,8 +427,8 @@
                id="org.apache.sling.ide.eclipse.ui.internal.ContentXmlResourceTester"
                type="org.apache.sling.ide.eclipse.ui.nav.model.JcrNode"
                namespace="org.apache.sling.ide.eclipse"
-               properties="isContentXmlFile"
-               class="org.apache.sling.ide.eclipse.ui.internal.ContentXmlResourceTester">
+               properties="isDocViewFile"
+               class="org.apache.sling.ide.eclipse.ui.internal.DocViewResourceTester">
          </propertyTester>
    </extension>
 
@@ -441,9 +441,9 @@
  	         </iterate>
          </definition>
          <definition
-            id="org.apache.sling.ide.eclipse.contentXmlFile">
+            id="org.apache.sling.ide.eclipse.docViewFile">
              <iterate ifEmpty="false">
-               <test property="org.apache.sling.ide.eclipse.isContentXmlFile"/>
+               <test property="org.apache.sling.ide.eclipse.isDocViewFile"/>
              </iterate>            
          </definition>
          <definition
@@ -580,7 +580,7 @@
                 label="Format .content.xml file">
                  <visibleWhen
                        checkEnabled="false">
-                    <reference definitionId="org.apache.sling.ide.eclipse.contentXmlFile"/>
+                    <reference definitionId="org.apache.sling.ide.eclipse.docViewFile"/>
                  </visibleWhen>
               </command>
               <command
diff --git a/eclipse/eclipse-ui/src/org/apache/sling/ide/eclipse/ui/internal/ContentXmlResourceTester.java b/eclipse/eclipse-ui/src/org/apache/sling/ide/eclipse/ui/internal/DocViewResourceTester.java
similarity index 88%
rename from eclipse/eclipse-ui/src/org/apache/sling/ide/eclipse/ui/internal/ContentXmlResourceTester.java
rename to eclipse/eclipse-ui/src/org/apache/sling/ide/eclipse/ui/internal/DocViewResourceTester.java
index f0167b9..a2c4260 100644
--- a/eclipse/eclipse-ui/src/org/apache/sling/ide/eclipse/ui/internal/ContentXmlResourceTester.java
+++ b/eclipse/eclipse-ui/src/org/apache/sling/ide/eclipse/ui/internal/DocViewResourceTester.java
@@ -19,16 +19,16 @@
 import org.apache.sling.ide.eclipse.ui.nav.model.JcrNode;
 import org.eclipse.core.expressions.PropertyTester;
 
-public class ContentXmlResourceTester extends PropertyTester {
+public class DocViewResourceTester extends PropertyTester {
 
     // this class should be in the core project, but since the JcrNode class is in the ui project
     // we keep it here
-    private static final String PN_IS_CONTENT_XML = "isContentXmlFile";
+    private static final String PN_IS_DOCVIEW_FILE = "isDocViewFile";
 
     @Override
     public boolean test(Object receiver, String property, Object[] args, Object expectedValue) {
         
-        if (!PN_IS_CONTENT_XML.equals(property)) {
+        if (!PN_IS_DOCVIEW_FILE.equals(property)) {
             return false;
         }