[glibmm] Keyfile: Add save_to_file().

[Murray Cumming <murrayc src gnome org>]

commit d820e2339248582f2083f737fd645494646b3c0a
Author: Murray Cumming <murrayc murrayc com>
Date:   Fri Apr 4 21:30:32 2014 +0200

    Keyfile: Add save_to_file().

 glib/src/keyfile.hg |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/glib/src/keyfile.hg b/glib/src/keyfile.hg
index a572e4d..b1560e9 100644
--- a/glib/src/keyfile.hg
+++ b/glib/src/keyfile.hg
@@ -166,6 +166,8 @@ _DEPRECATE_IFDEF_END
   Glib::ustring to_data();
   _IGNORE(g_key_file_to_data)
 
+  _WRAP_METHOD(bool save_to_file(const std::string& filename), g_key_file_save_to_file, errthrow)
+
   _WRAP_METHOD(Glib::ustring get_start_group() const, g_key_file_get_start_group)
        
   /** Gets a list of all groups in the KeyFile