[glib-networking/mcatanzaro/#84] (8 commits) ...gnutls: don't call failed() when rehandshaking

[Michael Catanzaro <mcatanzaro src gnome org>]

Summary of changes:

  bb82f1e... openssl: simplify client certificate retrieval code (*)
  2b6503c... base: Don't initially cancel waiting_for_op (*)
  3d5004f... base: always finish_handshake() before clearing handshake c (*)
  733d260... openssl: popping happens in a loop so the push should also  (*)
  f466967... openssl: reimplement read/write to be always non blocking (*)
  a7f2a16... tests: skip test_output_stream_close test with openssl 1.1. (*)
  c77391f... Run GnuTLS connection tests with TLS 1.3 disabled
  1fbc74f... gnutls: don't call failed() when rehandshaking

(*) This commit already existed in another branch; no separate mail sent