[vala] (9 commits) Non-fast-forward update to branch wip/gtkgir

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/gtkgir' 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:

  5e22360... girparser: Avoid fatal handling of nameless unions
  314e507... gtk+-3.0: switch to GIR

Commits added to the branch:

  c884192... glib-2.0: Fix wrong Version annotation and really add bindi (*)
  4313a9e... gio-2.0: "inbuf" argument of Converter.convert() is not nul (*)
  21d2110... vala: Fix critical warning with dynamic properties (*)
  3806a69... Revert "codegen: Create only one vala-array helper function (*)
  f22cd37... gtk+-3.0: Update to 3.19.8+3f4f914f (*)
  4f06275... vapi: Update GIR-based bindings (*)
  3834675... gdk-3.0, gtk+-3.0: Update to 3.19.9 (*)
  e637306... girparser: Avoid fatal handling of nameless unions
  d9c627e... gtk+-3.0: switch to GIR

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