[vala] (11 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:

  4cb6591... coverage: Build gidl-bindings
  80c59a7... ci: Add .gitlab-ci.yml
  f0c7fa0... ci: Add ubuntu:16.04 run with gcc
  92e58f1... ci: Add ubuntu:18.04 run with gcc
  9cd4fc9... ci: Add fedora:rawhide run with clang
  a2581a2... ci: Add archlinux/base:latest run with gcc
  9b5c273... ci: archlinux/bison - https://bugs.archlinux.org/task/64165
  8f376df... ci: Add alpine:edge run with gcc
  ac0de8e... ci: Always deploy

Commits added to the branch:

  b1bf1e9... vala: Add Block.unreachable_exit and have it set accordingl (*)
  708c291... testrunner: Add "-Werror=return-stack-address" flag (*)
  862dd2a... coverage: Build gidl-bindings
  5372bfc... ci: Add .gitlab-ci.yml
  7e5bd6d... ci: Add ubuntu:16.04 run with gcc
  59dbd4f... ci: Add ubuntu:18.04 run with gcc
  ecb2018... ci: Add fedora:rawhide run with clang
  c69ba4e... ci: Add archlinux/base:latest run with gcc
  d4250c1... ci: archlinux/bison - https://bugs.archlinux.org/task/64165
  8feddb2... ci: Add alpine:edge run with gcc
  5f716b4... ci: Always deploy

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