[vala] Created tag 0.34.8

[Rico Tzschichholz <ricotz src gnome org>]

The signed tag '0.34.8' was created.

Tagger: Rico Tzschichholz <ricotz ubuntu com>
Date: Tue May 2 14:30:04 2017 +0200

    0.34.8

Changes since the last tag '0.34.7':

David Lechner (1):
      gio-2.0: Fix async DBusObjectManagerClient.new/new_for_bus constructors

Marvin W (1):
      method: Always consider compatible with itself

Rico Tzschichholz (16):
      vala: Perform arguments-check against actual .end() method-signature
      vala: Slightly improve lamdba-expression error on target-type mismatch
      codegen: Fix delegate initializer for instance fields
      codegen: Don't leak target-reference when casting/assigning owned delegates
      girparser: Add destroy argument for metadata
      gstreamer-1.0: Fix Pad.set_*_function() bindings
      gtk+-2.0,gtk+-3.0: Mark "intersection" param of Widget.intersect() as out
      build: vapigen and vapicheck don't require ccode
      build: Add missing '\'
      glib-2.0: Add quark() functions to errordomains
      gio-2.0: Fix GLib.Task constructor
      gio-2.0: Fix GLib.Task.report_error/report_new_error()
      gio-2.0: Tweak metadata to avoid duplicated interface dependencies
      vala: Enums require at least one value otherwise report an error
      manual: Update from wiki.gnome.org
      Release 0.34.8