[atkmm] Visual Studio builds: Update glibmm ABI version

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

commit 5621f5ac272a65b8e67a48eddb4ae12cc57e4bd1
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Fri Apr 7 10:51:50 2017 +0800

    Visual Studio builds: Update glibmm ABI version
    
    We need to bump up the ABI version of glibmm as it was changed in the
    latest unstable series (as we await for GTK+-4.0).

 MSVC_Net2017/atkmm-version-paths.props |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/MSVC_Net2017/atkmm-version-paths.props b/MSVC_Net2017/atkmm-version-paths.props
index e26eaa4..aacd207 100644
--- a/MSVC_Net2017/atkmm-version-paths.props
+++ b/MSVC_Net2017/atkmm-version-paths.props
@@ -11,7 +11,7 @@
     <DebugDllSuffix>-vc$(VSVer)0-d-$(ApiMajorVersion)_$(ApiMinorVersion)</DebugDllSuffix>
     <SigCMajorVersion>3</SigCMajorVersion>
     <GLibMMMajorVersion>2</GLibMMMajorVersion>
-    <GLibMMMinorVersion>52</GLibMMMinorVersion>
+    <GLibMMMinorVersion>54</GLibMMMinorVersion>
   </PropertyGroup>
   <PropertyGroup>
     <_PropertySheetDisplayName>atkmmversionpathsprops</_PropertySheetDisplayName>
@@ -51,4 +51,4 @@
       <Value>$(GLibMMMinorVersion)</Value>
     </BuildMacro>
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>