Fix GTK launcher to change to correct working directory.

OpenRA.Launcher.Gtk/main.c

@@ -434,7 +434,10 @@ int main(int argc, char ** argv)
 {
   GtkWidget * hbox1, * hbox2, * vbox;
 
-  int res = chdir("../share/openra");
+  int res = chdir("/usr/share/openra");
+
+  if (0 != res)
+    res = chdir("/usr/local/share/openra");
 
   if (0 != res)
   {

packaging/linux/openra.desktop

@@ -1,4 +1,3 @@
-
 [Desktop Entry]
 Type=Application
 Version={VERSION}
@@ -8,4 +7,3 @@ Icon=openra
 Exec=/usr/bin/openra
 Terminal=false
 Categories=Game;
-Name[en_NZ]=openra.desktop