dhb I have the issue of m_medialist and m_brestore resolved. The only one

dhb  I have the issue of m_medialist and m_brestore resolved.  The only one
     used was the m_medialist to populate after the console connected.  So now
     I created a virtual function for clicked and double clicked in BatStack.
     All classes that want to do something based on a click in it's widget
     in the page selector can just use the virtual function.
     So in medialist, a single click will populate if not populated, and a double
     will repopulate from a clear.

git-svn-id: https://bacula.svn.sourceforge.net/svnroot/bacula/trunk@4414 91ce42f0-d328-0410-95d8-f526ca767f89