[gobject-introspection] Created tag 1.51.5

[Rico Tzschichholz <ricotz src gnome org>]

The signed tag '1.51.5' was created.

Tagger: Rico Tzschichholz <ricotz ubuntu com>
Date: Tue Mar 14 14:50:52 2017 +0100

    Tag release 1.51.5

Changes since the last tag '1.51.3':

Chun-wei Fan (6):
      Visual Studio builds: Support Visual Studio 2017
      win32/detect-msvc.mak: Support Visual Studio 2017
      win32/Makefile.msvc-introspection
      win32/Makefile.msvc-intrspection: Fix paths
      MSVC builds: "Install" test sources like autotools builds
      Visual Studio builds: Fix libxml-2.0.pc generation

Evan Nemerson (1):
      Makefile.introspection: Add variable for C includes

Rico Tzschichholz (4):
      Update .gitignore
      gir: Update annotations from GLib git master
      gir: Update annotations from GLib git master
      Release 1.51.5

Sebastian Geiger (1):
      g-ir-scanner: document GI_SCANNER_DEBUG in man page