Redirect loops and mazes

[Brian Evans]

Solderpunk wrote:
> High quality Gemini clients should be able to
> recognise these conditions and escape, rather than just endlessly
> following redirects and appearing to "lock up" to the user.

I absolutely agree. Bombadillo, as a matter of transparency, notifies the user that a redirect 
has been requested and asks if they would like to follow it or not. This leaves it always in 
the user's hands whether or not to proceed.

I also think this would be a good addition to the torture test, though I am unsure as a way
to validate that a client behvaed correctly.