verbose terminate() on by default, pass 2

[Gabriel Dos Reis]

Phil Edwards <phil@jaj.com> writes:

[...]

| Also planned:  doc updates (obviously), and some comment in
| eh_term_handler.cc saying, "to go back to the lower-overhead silent-death
| handler, include <cstdlib> and put std::abort on the right hand side of
| the equals sign".

This is OK modulo the declaration style mentioned by Nathan.

Thanks,

-- Gaby