[glib-networking] (5 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:

  87e386e... tls: split out non-gnutls-specific code from gnutls backend
  1d9ac46... Add a generic HAVE_TLS flag to build the tests
  b6baad2... base: add abstraction for push_io and pop_io
  2ce7767... Split tests to take into account the backend

Commits added to the branch:

  c408021... gnutls: minor cleanup (*)
  5b66bf5... tls: split out non-gnutls-specific code from gnutls backend
  aeab908... Add a generic HAVE_TLS flag to build the tests
  6d74fd3... base: add abstraction for push_io and pop_io
  c113fe2... Split tests to take into account the backend

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