[glib-networking] (9 commits) Non-fast-forward update to branch wip/tlssplit

[Ignacio Casal Quinteiro <icq src gnome org>]

The branch 'wip/tlssplit' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  62289e4... tls: split out non-gnutls-specific code from gnutls backend
  77a58f9... Add a generic HAVE_TLS flag to build the tests
  850f51d... base: add abstraction for push_io and pop_io
  6ae53fc... Split tests to take into account the backend
  becc7c5... base: move accept_peer_certificate to the base connection
  1edaa0c... Set the certificate even if there is a bad certificate erro

Commits added to the branch:

  741a9dc... gnutls: Fix a potential release of a non-allocated FD (*)
  d393aab... gnutls: Initialize the gnutls_session in initable_init (*)
  9b28d30... gnutls: Define EMSGSIZE on Windows systems (*)
  e8358e7... tls: split out non-gnutls-specific code from gnutls backend
  1db2b09... Add a generic HAVE_TLS flag to build the tests
  4808408... base: add abstraction for push_io and pop_io
  0808bce... Split tests to take into account the backend
  dfe6451... base: move accept_peer_certificate to the base connection
  3e70d75... Set the certificate even if there is a bad certificate erro

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