[vala] (19 commits) Non-fast-forward update to branch wip/meson

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/meson' 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:

  9c42aa9... Add initial Meson build system
  95c0080... meson: Avoid object clash of scanner.vala in libvaladoc
  d23bb55... meson: Add tests

Commits added to the branch:

  1377d85... testrunner: Add missing quotes (*)
  a447cfa... Add .editorconfig file (*)
  c78d70f... tests: Fix test delegates/bug659778.vala (*)
  2d390c5... tests: Fix dbus/filedescriptor-errors.test (*)
  fba28f3... vapi: Add javascriptcoregtk-4.0 and avoid skips in webkit2g (*)
  1d867ed... codegen: Don't transfer ownership of local-variable if targ (*)
  537ff83... tests: Add regression test (*)
  3bcfd0b... girparser: Support "cname" argument in metadata (*)
  b5ed922... girparser: Better support of "cprefix" argument in metadata (*)
  dd2d6c6... libvaladoc: Fix some -Wincompatible-pointer-types warnings (*)
  4056b1c... codegen: Actually write declaration for GNodeTraverseFunc w (*)
  5c12ee6... codegen: Adjust format-index for printf/scanf-methods which (*)
  3ee698c... codegen: Use given dup_function for structs (*)
  47fb617... vapi: Update GIR-based bindings (*)
  4794eab... gtk+-3.0: Update to 3.22.19 (*)
  c2d2ea4... Release 0.37.91 (*)
  800bcdf... Add initial Meson build system
  6308cd1... meson: Avoid object clash of scanner.vala in libvaladoc
  7f0967d... meson: Add tests

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