To portably get the Epoch. This is simply aliased to localtime() on ports
that are not timezone aware.
Signed-off-by: Damien George <damien@micropython.org>
The ability to change the host is a frequently requested feature, so
explicitly document how it can be achieved using the existing code.
See issues #2121, #4385, #4622, #5122, #5536.
This is to keep the top-level directory clean, to make it clear what is
core and what is a port, and to allow the repository to grow with new ports
in a sustainable way.
