[vala] (16 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:

  1082877... coverage: Build gidl-bindings
  1b538b4... ci: Add .gitlab-ci.yml
  610535c... ci: Add ubuntu:16.04 run with gcc
  3ed3082... ci: Add ubuntu:18.04 run with gcc
  20329bf... ci: Add fedora:latest run with clang
  869215c... ci: Add archlinux/base:latest run with gcc
  8d63897... ci: Always deploy

Commits added to the branch:

  53b09d4... libvaladoc: Include valadoc@PACKAGE_SUFFIX@.deps into tarba (*)
  7e4b86d... glib-2.0: DateTime.from_iso8601() can take a null TimeZone (*)
  6994986... Revert "libvaladoc: Include valadoc@PACKAGE_SUFFIX@.deps in (*)
  7028f8a... valadoc: Explicitly pass --pkg libgvc (*)
  9a4d04c... gobject-2.0: Some cherry-picking from GIR generated binding (*)
  be4669e... Directly use "memmove()" while g_memmove() is deprecated si (*)
  9c836f4... gio-unix-2.0: Fix DesktopAppInfo.get_string(), UnixFDMessag (*)
  85549c3... tests: Add "qualified member/symbol access" tests to increa (*)
  3a2fdaa... tests: Add invalid "parser" tests to increase coverage (*)
  83ed2ca... coverage: Build gidl-bindings
  752df08... ci: Add .gitlab-ci.yml
  02e4749... ci: Add ubuntu:16.04 run with gcc
  7e65b0d... ci: Add ubuntu:18.04 run with gcc
  e3c4308... ci: Add fedora:latest run with clang
  c2a0f54... ci: Add archlinux/base:latest run with gcc
  d7ec65e... ci: Always deploy

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