[vala] (9 commits) Non-fast-forward update to branch wip/ci

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/ci' 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:

  91f1056... ci: Add .gitlab-ci.yml
  f9cad05... ci: Always deploy
  1319a34... Use Fedora 29 -- https://bugzilla.redhat.com/show_bug.cgi?i
  4d90216... ci: Add ubuntu lts 16.04 run with gcc

Commits added to the branch:

  68e7d2a... poppler-glib: Update to 0.74 (*)
  af6959c... codegen: Replace gvaluecollector_h_needed with dedidated ad (*)
  b3b9837... codegen: Respect finish[_vfunc]_name attributes defined in  (*)
  1941951... girwriter: Always use get_gir_name() for TypeSymbols (*)
  fcc4a92... vala: Correctly perform compatibility check of array length (*)
  9a99933... ci: Add .gitlab-ci.yml
  fe756eb... ci: Always deploy
  a63cd7c... Use Fedora 29 -- https://bugzilla.redhat.com/show_bug.cgi?i
  6f91737... ci: Add ubuntu lts 16.04 run with gcc

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