[vala] (12 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:

  42f9863... coverage: Build gidl-bindings
  85d4498... ci: Add .gitlab-ci.yml
  0ee0e10... ci: Add ubuntu:16.04 run with gcc
  9a7aff8... ci: Add ubuntu:18.04 run with gcc
  d94a8da... ci: Add fedora:rawhide run with clang
  7d5f4b0... ci: Add archlinux/base:latest run with gcc
  dd03e81... ci: archlinux/bison - https://bugs.archlinux.org/task/64165
  2d19a2b... ci: Add alpine:edge run with gcc
  c6a5d5e... ci: Always deploy
  dff0277... ci: Allow clang to fail for now :-(

Commits added to the branch:

  52b14a9... ccode: Use __attribute__ replacements of G_GNUC_* for posix (*)
  211e277... codegen: Apply CCodeModifiers.PRINTF to "string_printf" (PO (*)
  e6d3931... coverage: Build gidl-bindings
  d9bfbbd... ci: Add .gitlab-ci.yml
  815ee69... ci: Add ubuntu:16.04 run with gcc
  21a879d... ci: Add ubuntu:18.04 run with gcc
  396d093... ci: Add fedora:rawhide run with clang
  9a36bd6... ci: Add archlinux/base:latest run with gcc
  44f2e5f... ci: archlinux/bison - https://bugs.archlinux.org/task/64165
  c9d5430... ci: Add alpine:edge run with gcc
  8524bf8... ci: Always deploy
  5fdd641... Fedora rawhide is broken

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