[glibmm] MSVC Builds: Fix Last Revert on GLib::Weakref<>

[Chun-wei Fan <fanchunwei src gnome org>]

commit 21e275f1f4cdcd4825c73fb7bbd8bcfcdaa4c39e
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Mon Sep 21 15:32:02 2015 +0800

    MSVC Builds: Fix Last Revert on GLib::Weakref<>
    
    We still need to copy the GLib::Weakref<> headers..., as my last commit
    accidently removed.

 MSVC_Net2013/glibmm-install.props   |    1 +
 MSVC_Net2013/glibmm.vcxproj         |    1 +
 MSVC_Net2013/glibmm.vcxproj.filters |    1 +
 3 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/MSVC_Net2013/glibmm-install.props b/MSVC_Net2013/glibmm-install.props
index 0466683..f039e6b 100644
--- a/MSVC_Net2013/glibmm-install.props
+++ b/MSVC_Net2013/glibmm-install.props
@@ -97,6 +97,7 @@ copy ..\glib\glibmm\valuearray.h $(CopyDir)\include\glibmm-$(ApiMajorVersion).$(
 copy ..\glib\glibmm\value_basictypes.h $(CopyDir)\include\glibmm-$(ApiMajorVersion).$(ApiMinorVersion)\glibmm
 copy ..\glib\glibmm\value_custom.h $(CopyDir)\include\glibmm-$(ApiMajorVersion).$(ApiMinorVersion)\glibmm
 copy ..\glib\glibmm\vectorutils.h $(CopyDir)\include\glibmm-$(ApiMajorVersion).$(ApiMinorVersion)\glibmm
+copy ..\glib\glibmm\weakref.h $(CopyDir)\include\glibmm-$(ApiMajorVersion).$(ApiMinorVersion)\glibmm
 copy ..\glib\glibmm\wrap.h $(CopyDir)\include\glibmm-$(ApiMajorVersion).$(ApiMinorVersion)\glibmm
 copy ..\glib\glibmm\wrap_init.h $(CopyDir)\include\glibmm-$(ApiMajorVersion).$(ApiMinorVersion)\glibmm
 
diff --git a/MSVC_Net2013/glibmm.vcxproj b/MSVC_Net2013/glibmm.vcxproj
index f437024..8bfeb6e 100644
--- a/MSVC_Net2013/glibmm.vcxproj
+++ b/MSVC_Net2013/glibmm.vcxproj
@@ -341,6 +341,7 @@
     <ClInclude Include="..\glib\glibmm\varianttype.h" />
     <ClInclude Include="..\glib\glibmm\variant_basictypes.h" />
     <ClInclude Include="..\glib\glibmm\vectorutils.h" />
+    <ClInclude Include="..\glib\glibmm\weakref.h" />
     <ClInclude Include="..\glib\glibmm\wrap.h" />
     <ClInclude Include="..\glib\glibmm\wrap_init.h" />
   </ItemGroup>
diff --git a/MSVC_Net2013/glibmm.vcxproj.filters b/MSVC_Net2013/glibmm.vcxproj.filters
index f2aa89b..7887ad2 100644
--- a/MSVC_Net2013/glibmm.vcxproj.filters
+++ b/MSVC_Net2013/glibmm.vcxproj.filters
@@ -158,6 +158,7 @@
     <ClInclude Include="..\glib\glibmm\varianttype.h"><Filter>Header Files</Filter></ClInclude>
     <ClInclude Include="..\glib\glibmm\variant_basictypes.h"><Filter>Header Files</Filter></ClInclude>
     <ClInclude Include="..\glib\glibmm\vectorutils.h"><Filter>Header Files</Filter></ClInclude>
+    <ClInclude Include="..\glib\glibmm\weakref.h"><Filter>Header Files</Filter></ClInclude>
     <ClInclude Include="..\glib\glibmm\wrap.h"><Filter>Header Files</Filter></ClInclude>
     <ClInclude Include="..\glib\glibmm\wrap_init.h"><Filter>Header Files</Filter></ClInclude>
   </ItemGroup>