[vala] (5 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:

  1446339... coverage: Build gidl-bindings
  87dbe1f... ci: Add .gitlab-ci.yml
  ac86520... ci: Add ubuntu:16.04 run with gcc
  4da4e99... ci: Add ubuntu:18.04 run with gcc
  56cf2fc... ci: Add fedora:rawhide run with clang
  59929ae... ci: Add archlinux/base:latest run with gcc
  ad58e8e... ci: archlinux/bison - https://bugs.archlinux.org/task/64165
  1c39f74... ci: Add alpine:edge run with gcc
  2c1d4d0... ci: Always deploy

Commits added to the branch:

  fd1ed94... meson: Add initial build support
  d911187... meson: Allow static builds
  e9d5f28... WIP meson: Add tests
  efab887... WIP meson: Add internal-api-docs
  5e9d8f6... WIP meson: Add meson-bootstrap.sh