Rebase onto 8.1.0.0-365

This is a combination of the following commits.
Do not dispose the titleImageLabel to resolve "Widget is disposed" error when opening the repository dialog
Comment-out the use of an unimplemented SWT API "gc.copyArea"
Fix the issue that menuitems cannot be pushed on webSpoon unless their type is checkbox
Disable the use of CMD key for shortcuts. At least, this should not be determined in the server-side
Revert "Do not dispose the titleImageLabel to resolve "Widget is disposed" error when opening the repository dialog"
This reverts commit cd6fb78.
Change the version of pentaho-xul-swt
Restore the image of checkboxes in XulTree

swt/pom.xml

@@ -5,7 +5,7 @@
 
   <artifactId>commons-xul-swt</artifactId>
   <packaging>jar</packaging>
-  <version>8.1.0.0-365</version>
+  <version>8.1.0.0-365-16</version>
 
   <name>Commons XUL SWT</name>
 
@@ -26,7 +26,7 @@
     <dependency>
       <groupId>org.pentaho</groupId>
       <artifactId>commons-xul-core</artifactId>
-      <version>${project.version}</version>
+      <version>${project.parent.version}</version>
     </dependency>
 
     <dependency>

swt/src/main/java/org/pentaho/ui/xul/jface/tags/JfaceMenuitem.java

@@ -89,7 +89,7 @@ public IAction getAction() {
   }
 
   private Action initAction( Element self, Action alternativeAction ) {
-    int style = Action.AS_DROP_DOWN_MENU;
+    int style = Action.AS_PUSH_BUTTON;
     if ( self != null && "checkbox".equals( self.getAttributeValue( "type" ) ) ) {
       style = Action.AS_CHECK_BOX;
     }
@@ -193,8 +193,7 @@ public void setAccesskey( String accessKey ) {
     if ( contributionItem != null ) {
       int mask = 0;
       if ( accessKey.indexOf( "ctrl" ) > -1 ) { //$NON-NLS-1$
-        boolean isMac = System.getProperty( "os.name" ).toLowerCase().indexOf( "mac" ) >= 0;
-        mask += isMac ? SWT.COMMAND : SWT.CTRL;
+        mask += SWT.CTRL;
       }
       if ( accessKey.indexOf( "shift" ) > -1 ) { //$NON-NLS-1$
         mask += SWT.SHIFT;

swt/src/main/java/org/pentaho/ui/xul/swt/tags/treeutil/XulTableColumnLabelProvider.java

@@ -125,28 +125,9 @@ public Image getColumnImage( Object row, int col ) {
   }
 
   private Image makeImage( final Shell shell, boolean type ) {
-    Shell placeholder = new Shell( shell, SWT.NO_TRIM );
-    Button btn = new Button( placeholder, SWT.CHECK );
-    btn.setSelection( type );
-    Point bsize = btn.computeSize( SWT.DEFAULT, SWT.DEFAULT );
-    btn.setSize( bsize );
-    placeholder.setSize( bsize );
-    btn.setLocation( 0, 0 );
-    placeholder.open();
-
-    final GC gc = new GC( btn );
-    final Image image = new Image( shell.getDisplay(), bsize.x, bsize.y );
-    shell.getDisplay().syncExec( new Runnable() {
-      @Override public void run() {
-        shell.getDisplay().readAndDispatch();
-        gc.copyArea( image, 0, 0 );
-        gc.dispose();
-      }
-    } );
-
-    placeholder.close();
-
-    return image;
+    String location = "org/pentaho/ui/xul/swt/tags/images/";
+    location += type ? "checked.png" : "unchecked.png";
+    return new Image( shell.getDisplay(), this.getClass().getClassLoader().getResourceAsStream( location ) );
   }
 
   private boolean isSelected( Object row, int col ) {