[LyX/master] Remove obsolete formats from file dialog

[Vincent van Ravesteijn]

commit 130c375174b753bead1643ab7eaaf71344052adc
Author: Richard Heck <rgh...@lyx.org>
Date:   Tue Apr 1 21:53:37 2014 +0200

    Remove obsolete formats from file dialog
    
    It is confusing for the users to see the formats 1.3--1.6 in the file-open
    dialog and not the 2.0 format. The exotic extensions were only used when
    e.g., LyX 1.6.x exported to LyX 1.5.x format.

diff --git a/src/frontends/qt4/GuiView.cpp b/src/frontends/qt4/GuiView.cpp
index 28c6f3a..cd5d3ff 100644
--- a/src/frontends/qt4/GuiView.cpp
+++ b/src/frontends/qt4/GuiView.cpp
@@ -1951,11 +1951,7 @@ void GuiView::openDocument(string const & fname)
                dlg.setButton2(qt_("Examples|#E#e"),
                                
toqstr(addPath(package().system_support().absFileName(), "examples")));
 
-               QStringList filter(qt_("LyX Documents (*.lyx)"));
-               filter << qt_("LyX-1.3.x Documents (*.lyx13)")
-                       << qt_("LyX-1.4.x Documents (*.lyx14)")
-                       << qt_("LyX-1.5.x Documents (*.lyx15)")
-                       << qt_("LyX-1.6.x Documents (*.lyx16)");
+               QStringList const filter(qt_("LyX Documents (*.lyx)"));
                FileDialog::Result result =
                        dlg.open(toqstr(initpath), filter);