tests: add dummy SMTP daemon for SSL tests
Currently it only supports SMTP over SSL since SMTPS should be simpler than
handling StartTLS.
Since we don't need asynchronous server for our tests, it does TLS handshake
in blocking way. But asyncore is required by Python smtpd module.
tests: extract SSL certificates from test-https.t
They can be reused in SMTPS tests.
check-code: make 'ls' pattern less invasive
I got false positive at "--tls smtps --certificate ...".
largefiles: fix support for local largefiles while using share extension
Prior to revision
2a3f24786d09, largefiles were saved in the local repository,
even if it was using the share extension. After that change, all largefiles are
now stored in the shared repository. However, the backward compatibility for
existing largefiles already placed in the local repository was never tested,
and has been broken since.