added code to transmit the sender GXS id in the message widget. Still need to make distant message links work

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@7347 b45a01b8-16f6-495d-af2f-9b41ad6348cc

retroshare-gui/src/gui/msgs/MessageComposer.h

@@ -80,6 +80,7 @@ public slots:
     void  addImage();
     
     void changeFormatType(int styleIndex );
+	 void updateSigningButton(int) ;
 
 protected:
     void closeEvent (QCloseEvent * event);