User-specific .desktop files not parsed

Using Gnome-Do, it finds all system-wide .desktop settings no problem, but does not parse my ~/.local/share/applications dir for my custom application entries. This patch shows an example of how to fix it, however the username is not dynamic (i.e. I had to hard-code my username).

--- old/ApplicationItemSource.cs 2007-11-27 11:24:28.000000000 -0500
+++ new/ApplicationItemSource.cs 2007-11-27 11:22:33.000000000 -0500
@@ -35,6 +35,7 @@
                        "/usr/share/applications/kde",
                        "/usr/share/gdm/applications",
                        "/usr/local/share/applications",
+ "/home/USERNAME/.local/share/applications",
                };

                private List<IItem> apps;