STALK-IRC 0.15.0

• removed white fuzz on icon edges
• now the app doesn't crash instantly if you've never run it before
• using GitHubUpdate (thanks nixxquality) for update checking instead of scraping the topic like a neanderthal
• support for updates that don't force close the app
• you can receive queries now, but you can't send them!
• I changed something in the script but I don't remember what
• direct client messages look like the last game you played instead of SoC all the time