[libgda] Avoid warning upon GdaConnection object creation

[Vivien Malerba <vivien src gnome org>]

commit e8e28eedb209a5be2929212417f6c15b8eeb8562
Author: Vivien Malerba <malerba gnome-db org>
Date:   Wed Apr 3 21:00:59 2013 +0200

    Avoid warning upon GdaConnection object creation
    
    which was introduced by commit 345adb64d8bef9d998c2d687ff7d3968a627ea86

 libgda/gda-connection.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libgda/gda-connection.c b/libgda/gda-connection.c
index c07fc65..f97f3af 100644
--- a/libgda/gda-connection.c
+++ b/libgda/gda-connection.c
@@ -395,7 +395,7 @@ gda_connection_class_init (GdaConnectionClass *klass)
                                         g_param_spec_boolean ("is-wrapper", NULL,
                                                               _("Determines if the connection acts as a 
thread wrapper around another connection, making it completely thread safe"),
                                                               FALSE,
-                                                              (G_PARAM_READABLE | G_PARAM_WRITABLE | 
G_PARAM_CONSTRUCT_ONLY)));
+                                                              G_PARAM_READABLE | G_PARAM_WRITABLE));
 
        /**
         * GdaConnection:monitor-wrapped-in-mainloop: