Gringotts does not show in Unity: gringotts.desktop needs tweaking

In natty and oneiric at least, after installing Gringotts ( http://apt.ubuntu.com/p/gringotts ) the application will not show up in the Unity dash, and it is not possible to associate .grg files with Gringotts using the usual GNOME dialogue. The only way to use this application is to launch it from Alt-F2 or a terminal, and open existing files from within it.

These problems can be attributed to the gringotts.desktop file, which is installed under /usr/share/applications. In particular, changing:

Exec=gringotts
TryExec=

to

Exec=gringotts -f %U
TryExec=gringotts
Categories=GTK;Utility;Security;TextEditor;

makes the application integrate correctly with the desktop.

In addition, it would be great if the installation automatically associated .grg files with the application, but I don't know how to go about that.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: gringotts 1.2.10~pre3-1 [modified: usr/share/applications/gringotts.desktop]
ProcVersionSignature: Ubuntu 3.0.0-14.23-generic 3.0.9
Uname: Linux 3.0.0-14-generic x86_64
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Sun Nov 27 12:53:20 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: gringotts
UpgradeStatus: Upgraded to oneiric on 2011-11-17 (9 days ago)