[vala] (19 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:

  b3cff90... ci: Add .gitlab-ci.yml
  2058e42... ci: Always deploy
  5a866fd... ci: Add ubuntu lts 16.04 run with gcc
  be62dd1... ci: Add ubuntu lts 14.04 run with gcc
  ff185f4... ci: Build and deploy API documentation
  c646bbf... Use Fedora 29 -- https://bugzilla.redhat.com/show_bug.cgi?i

Commits added to the branch:

  8106f17... Bump version suffix to 0.46 (*)
  1229ead... Require and target GLib >= 2.48 (*)
  f4b86c1... vala: Add support for --target-glib=auto (*)
  2caef4f... vala: Report error for public creation methods of abstract  (*)
  d19187f... vala: Report error for yield statements without async conte (*)
  e0d8685... codegen: Handle ArrayType in visit_delete_statement() as de (*)
  1cc3f8a... vapi: Remove vte, vte-2.90 bindings (*)
  254a253... vapi: Rename graphene-1.0 to graphene-gobject-1.0 (*)
  4bcd543... vala: Variadic parameters are not supported for async metho (*)
  cc034f3... codegen: Move and make a few methods to static functions (*)
  2511490... glib-2.0: Don't annotate dedicated GLib.assert_*() function (*)
  f5a2813... codegen: No need to retrieve CodeContext.save_csources insi (*)
  67a8ac1... vala: Add CodeContext.get_source_file() and perform some sa (*)
  f9bae0e... vala: Bump implicit target-glib to 2.48 (*)
  ddf0ab8... ci: Add .gitlab-ci.yml
  63aa21e... ci: Always deploy
  5113d2e... ci: Add ubuntu lts 16.04 run with gcc
  f7ff512... ci: Build and deploy API documentation
  127565c... Use Fedora 29 -- https://bugzilla.redhat.com/show_bug.cgi?i

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