Escape mnemonics in preference page titles

The current release of Wild Web Developer uses a preference page
"Validation & Resolution". The title is displayed wrongly on the (right
hand side) preference page content because the ampersand is interpreted
as mnemonic.

Author: Bananeweizen

bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java

@@ -29,6 +29,7 @@
 import org.eclipse.core.runtime.ListenerList;
 import org.eclipse.core.runtime.SafeRunner;
 import org.eclipse.core.runtime.Status;
+import org.eclipse.jface.action.LegacyActionTools;
 import org.eclipse.jface.dialogs.DialogMessageArea;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.dialogs.IMessageProvider;
@@ -1356,7 +1357,7 @@ public void updateTitle() {
 		if(currentPage == null) {
 			return;
 		}
-		messageArea.showTitle(currentPage.getTitle(), currentPage.getImage());
+		messageArea.showTitle(LegacyActionTools.escapeMnemonics(currentPage.getTitle()), currentPage.getImage());
 	}
 
 	/**