SSL: Increased session reuse paranoia.

Don't reuse sessions which differ from what a newly negotiated
session would be.

This fixes potential cross-site attacks and similar.
When resolving addresses, first try with forced numberic hosts

Also, give the numericport hint when the port is numeric.
Dropped 7.0 hiding support in the traditional manual.

Unless I am incorrect this list should have included 7.6 and 7.8 as well
Fixed documentation syntax error
Fixed typo.
Looks like we forgot to deprecate spider when we introduced deprecated. Oops.
OO a bit more.
Let's hide 7.6:: and 7.8:: as well in traditional mode.