[bug#45721] [PATCH v15] Add Telegram Desktop.

[Raghav Gururajan]

Hi Leo!

> this was supposed to be a short set of mostly cosmetic changes before
> pushing your patch, but alas, I discovered, that gsl actually conflicts
> with an existing package.  I've verified, that Telegram still runs with
> the changes I've made and I don't think I have anything else to add,
> but someone else should look over these patches once again to make sure
> that I didn't overlook anything.

Thank you!

Regards,
RG.