[vala] (17 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:

  cb25947... coverage: Build gidl-bindings
  517c2a6... ci: Add .gitlab-ci.yml
  2b7cb63... ci: Add ubuntu:16.04 run with gcc
  0b4fc51... ci: Add ubuntu:18.04 run with gcc
  d614988... ci: Add fedora:latest run with clang
  39d31b8... ci: Add archlinux/base:latest run with gcc
  410b755... ci: Always deploy

Commits added to the branch:

  d4bb50a... docs: Mention requirement of autoconf-archive as build-depe (*)
  c39b767... glib-2.0: Set default_value attribute for GLib.pointer (*)
  32d9bb6... codegen: Preserve full access to delegate variables and its (*)
  b5aa04b... codegen: Initialize delegate temp-var which is assigned by  (*)
  f0b5be7... codegen: Silence warning about copying if delegate doesn't  (*)
  1bce8c0... tests: Add dedicated "delegate without target through varar (*)
  bab871f... codegen: Allow passing/retrieving any delegate to/from vara (*)
  2e6f652... codegen: Support gobject property of delegates not carrying (*)
  ca7ab54... vala: Add delegate_target_type and delegate_target_destroy_ (*)
  c054da9... vala: Add DelegateType.target/destroy fields to access its  (*)
  19006b0... coverage: Build gidl-bindings
  9108dc7... ci: Add .gitlab-ci.yml
  e235430... ci: Add ubuntu:16.04 run with gcc
  22f95f4... ci: Add ubuntu:18.04 run with gcc
  cef1724... ci: Add fedora:latest run with clang
  eb07a94... ci: Add archlinux/base:latest run with gcc
  9bd9152... ci: Always deploy

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