Solving issue 2161: "Hide Filmstrip elements"

"t" has been remapped to "Ctrl+t" to show the content of the Trash
"t" now show/hide the film strip and update the size of the allocated space
"Shift-t" show/hide the film strip and keep the allocated space identical, preventing a main preview refresh

rtgui/batchqueue.cc

@@ -38,6 +38,8 @@ using namespace rtengine;
 
 BatchQueue::BatchQueue () : processing(NULL), sequence(0), listener(NULL)  {
 
+    location = THLOC_BATCHQUEUE;
+
     int p = 0;
     pmenu = new Gtk::Menu ();
     pmenu->attach (*Gtk::manage(selall = new Gtk::MenuItem (M("FILEBROWSER_POPUPSELECTALL"))), 0, 1, p, p+1); p++;