Bug 88724 Provide 'since' javadoc in snippets
It would be a useful additional information in some snippets if there were an @since javadoc tag that tells from which version on the snippet will work. For instance, snippet 175 works only from Eclipse 3.1 on, since it uses the GridData.exclude field which was introduced in 3.1
examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet157.java
org.eclipse.swt.widgets.Display display;
	org.eclipse.swt.widgets.Shell swtParent;
	java.awt.Canvas awtParent;
public void init () {
	Thread thread = new Thread (new Runnable () {
		public void run () {
			setLayout(new java.awt.GridLayout (1, 1));
			awtParent = new java.awt.Canvas ();
			add (awtParent);
			display = new org.eclipse.swt.widgets.Display ();
			swtParent = org.eclipse.swt.awt.SWT_AWT.new_Shell (display, awtParent);
			swtParent.setLayout (new org.eclipse.swt.layout.FillLayout ());
			org.eclipse.swt.ole.win32.OleFrame frame = new org.eclipse.swt.ole.win32.OleFrame (swtParent, org.eclipse.swt.SWT.NONE);
			org.eclipse.swt.ole.win32.OleClientSite site;
			try {
				site = new org.eclipse.swt.ole.win32.OleClientSite (frame, org.eclipse.swt.SWT.NONE, "Word.Document");
			} catch (org.eclipse.swt.SWTException e) {