[Qt4 Patch] fix branches to document connection

[Abdelrazak Younes]

When I created the Branches dialog class, I forgot to connect it to the 
Document settings panel dialog.

This goes in now.
Abdel.
Index: D:/msys/home/yns/lyx/trunk/src/frontends/qt4/QBranches.C
===================================================================
--- D:/msys/home/yns/lyx/trunk/src/frontends/qt4/QBranches.C    (revision 13429)
+++ D:/msys/home/yns/lyx/trunk/src/frontends/qt4/QBranches.C    (working copy)
@@ -80,7 +80,8 @@
                // restore selected branch
                if (bname == sel_branch)
                        branchesLV->setSelected(newItem, true);
-       }
+       }
+       emit changed();
 }
 
 void QBranches::apply(BufferParams & params) const
Index: D:/msys/home/yns/lyx/trunk/src/frontends/qt4/QBranches.h
===================================================================
--- D:/msys/home/yns/lyx/trunk/src/frontends/qt4/QBranches.h    (revision 13409)
+++ D:/msys/home/yns/lyx/trunk/src/frontends/qt4/QBranches.h    (working copy)
@@ -39,6 +39,9 @@
        
        void update(BufferParams const & params);
        void apply(BufferParams & params) const;
+
+signals:
+       void changed();
 
 protected:
        void toggleBranch(Q3ListViewItem * selItem);
Index: D:/msys/home/yns/lyx/trunk/src/frontends/qt4/QDocumentDialog.C
===================================================================
--- D:/msys/home/yns/lyx/trunk/src/frontends/qt4/QDocumentDialog.C      
(revision 13409)
+++ D:/msys/home/yns/lyx/trunk/src/frontends/qt4/QDocumentDialog.C      
(working copy)
@@ -354,6 +354,7 @@
 
        
        branchesModule = new QBranches;
+       connect(branchesModule, SIGNAL(changed()), this, 
SLOT(change_adaptor()));
        
 
        preambleModule = new UiWidget<Ui::PreambleUi>;