[pygobject] Bump g-i dependency to latest stable

[Garrett Regier <gregier src gnome org>]

commit 5fcc0b49e5988bfb6893bd56dd25a6257cd9720d
Author: Garrett Regier <garrett regier riftio com>
Date:   Tue Sep 22 14:57:13 2015 -0700

    Bump g-i dependency to latest stable
    
    This is required for throwing exceptions in closures.

 README       |    2 +-
 configure.ac |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/README b/README
index d38e974..eb7ec8a 100644
--- a/README
+++ b/README
@@ -47,7 +47,7 @@ Requirements
   * C compiler (GCC and MSVC supported)
   * Python 2.7 or higher
   * Glib/Gio 2.38.0 or higher
-  * gobject-introspection 1.38.0 or higher
+  * gobject-introspection 1.46.0 or higher
   * libffi (optional)
 
 Copyright Information
diff --git a/configure.ac b/configure.ac
index 434cdb4..0509f2f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -22,7 +22,7 @@ m4_define(pygobject_micro_version, 1)
 m4_define(pygobject_version, pygobject_major_version.pygobject_minor_version.pygobject_micro_version)
 
 dnl versions of packages we require ...
-m4_define(introspection_required_version, 1.39.0)
+m4_define(introspection_required_version, 1.46.0)
 m4_define(py2cairo_required_version, 1.2.0)
 m4_define(py3cairo_required_version, 1.10.0)
 m4_define(glib_required_version, 2.38.0)