Wishlist: Parse bookmark lists

[steve8x8]

Subject says it all. Being able to parse bookmark lists (including "disabled" and "archived" flags) would be great - GC's KML files lack some important information.
URL to use: /bookmarks/view.aspx?guid=...

[steve8x8]

Still to be fixed: If there's no creation date available, the current date is inserted. Use 2000-01-01 instead, like in other places.

[steve8x8]

There's another quirk (not limited to this particular use case): If a cache description is accessed via its GUID, the corresponding WID-GUID mapping is not added to the mapping.yaml file.