[gtkmm] Update .gitignore

[Kjell Ahlstedt <kjellahl src gnome org>]

commit fd51fd5f5add64ef62daa546afeba1aaf45d6e09
Author: Kjell Ahlstedt <kjell ahlstedt bredband net>
Date:   Sun Mar 9 14:36:24 2014 +0100

    Update .gitignore
    
    * .gitignore: Ignore newly added generated classes in gtk/gtkmm.

 .gitignore |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index 7272b7f..cee5dca 100644
--- a/.gitignore
+++ b/.gitignore
@@ -114,6 +114,8 @@ gtk/gtkmm/action.cc
 gtk/gtkmm/action.h
 gtk/gtkmm/actionable.cc
 gtk/gtkmm/actionable.h
+gtk/gtkmm/actionbar.cc
+gtk/gtkmm/actionbar.h
 gtk/gtkmm/actiongroup.cc
 gtk/gtkmm/actiongroup.h
 gtk/gtkmm/activatable.cc
@@ -238,6 +240,10 @@ gtk/gtkmm/filefilter.cc
 gtk/gtkmm/filefilter.h
 gtk/gtkmm/fixed.cc
 gtk/gtkmm/fixed.h
+gtk/gtkmm/flowbox.cc
+gtk/gtkmm/flowbox.h
+gtk/gtkmm/flowboxchild.cc
+gtk/gtkmm/flowboxchild.h
 gtk/gtkmm/fontbutton.cc
 gtk/gtkmm/fontbutton.h
 gtk/gtkmm/fontchooser.cc
@@ -340,6 +346,8 @@ gtk/gtkmm/placessidebar.cc
 gtk/gtkmm/placessidebar.h
 gtk/gtkmm/plug.cc
 gtk/gtkmm/plug.h
+gtk/gtkmm/popover.cc
+gtk/gtkmm/popover.h
 gtk/gtkmm/printcontext.cc
 gtk/gtkmm/printcontext.h
 gtk/gtkmm/printer.cc