MACOSX: Add Sparkle support
|Reported by:||CeRiAl||Owned by:||sev-|
|Priority:||normal||Component:||Port: Mac OS X|
This patch adds Sparkle support for Mac OS X. Additionally needed is a space where to host the update-rss-feed, and of course the private/public keys to sign the update.
Ticket imported from: #3202319. Ticket imported from: patches/1391.