Add a WebView in preparation for the page info. Refactor SidebarEntry out of Mod. Add an "Other" category with links for support/credits+legal.

OpenRA.Launcher.Mac/SidebarEntry.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2007-2010 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made 
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation. For more information,
+ * see LICENSE.
+ */
+
+#import <Cocoa/Cocoa.h>
+
+@class Mod;
+@interface SidebarEntry : NSObject
+{
+	BOOL isHeader;
+	NSString *title;
+	NSImage *icon;
+	id object;
+	NSMutableArray *children;
+}
+
+@property (readonly) BOOL isHeader;
+@property (readonly) NSString *title;
+@property (readonly) NSMutableArray* children;
+@property (readonly) NSImage* icon;
+
++ (id)headerWithTitle:(NSString *)aTitle;
++ (id)entryWithTitle:(NSString *)aTitle object:(id)anObject icon:(id)anIcon;
++ (id)entryWithMod:(Mod *)baseMod allMods:(NSArray *)allMods;
+- (id)initWithTitle:(NSString *)aTitle object:(id)anObject icon:(id)anIcon isHeader:(BOOL)aHeader;
+- (void)addChild:(id)child;
+
+@end