[niepce] No longer set follow-state on Gtk 3.16 as it is the default AND deprecated.

[Hubert Figuière <hub src gnome org>]

commit bdff40cda1f3d26dafe6ddf9186c5f09e182736f
Author: Hubert Figuière <hub figuiere net>
Date:   Thu Jun 4 16:10:48 2015 -0400

    No longer set follow-state on Gtk 3.16 as it is the default AND deprecated.

 src/niepce/ui/thumbstripview.cpp |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/src/niepce/ui/thumbstripview.cpp b/src/niepce/ui/thumbstripview.cpp
index f9e93ad..b24c5f4 100644
--- a/src/niepce/ui/thumbstripview.cpp
+++ b/src/niepce/ui/thumbstripview.cpp
@@ -86,7 +86,9 @@ ThumbStripView::ThumbStripView(const Glib::RefPtr<ui::ImageListStore> & store)
     m_renderer = manage(new ThumbStripCell());
 
     pack_start(*m_renderer, FALSE);
-    m_renderer->property_follow_state() = true;
+    if (gtk_check_version(3, 16, 0) != nullptr) {
+        m_renderer->property_follow_state() = true;
+    }
     m_renderer->property_height() = 100;
     m_renderer->property_yalign() = 0.5;
     m_renderer->property_xalign() = 0.5;