Rename desktop file so we appear in GNOME Software

data/Makefile.am

@@ -1,7 +1,7 @@
 SUBDIRS = icons pieces textures
 
 desktopdir = $(datadir)/applications
-desktop_in_files = glchess.desktop.in
+desktop_in_files = gnome-chess.desktop.in
 desktop_DATA = $(desktop_in_files:.desktop.in=.desktop)
 @INTLTOOL_DESKTOP_RULE@
 

po/POTFILES.in

@@ -1,8 +1,8 @@
 # List of source files containing translatable strings.
 # Please keep this file in alphabetical order.
 [encoding: UTF-8]
-data/glchess.desktop.in
 data/gnome-chess.appdata.xml.in
+data/gnome-chess.desktop.in
 [type: gettext/glade]data/gnome-chess.ui
 [type: gettext/glade]data/menu.ui
 data/org.gnome.gnome-chess.gschema.xml

src/gnome-chess.vala

@@ -2127,9 +2127,6 @@ class GnomeChess
         Intl.bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
         Intl.textdomain (GETTEXT_PACKAGE);
 
-        /* This can probably be removed if the desktop file is renamed to gnome-chess.desktop */
-        Environment.set_prgname ("glchess");
-
         var c = new OptionContext (/* Arguments and description for --help text */
                                    _("[FILE] - Play Chess"));
         c.add_main_entries (options, GETTEXT_PACKAGE);