Improve Sitemap debugging

[davidsowerby]

It is very easy to lose visibility of route / view structure, and ensure that everything is consistent. Not sure yet what the complete answer is, but this is worth some thought. Possibilities include:

• Make sure all standard pages are meaningfully defined
• Produce an output something like UserSitemap.toString() , but from the MasterSitemap with various layout options.

Half baked example:

By name key, with [] representing pages which require permission, {} which require roles, unmarked are public (this would need monospaced font to line up properly)

- Home                 home
- [Finance]            finance
-- [Purchasing]      finance/purchasing