GOSSIP unstable:

I have updated egui (by one major release, not to the latest) and there may be some odd behaviors

(like scrolling instantly stops when your mouse exits the main area).

I have also changed how repainting works:

* There is no fallback "repaint every second" any more. It can sit for long periods without any repaints if nothing changes.

* There is no "exception for scrolling" anymore on FPS limiting. So FPS limiting makes scrolling, animation, and fades look "choppy" below 30 FPS. Default for max FPS is now 60. Note that it was rendering "as fast as possible" previously as an exception, so this isn't really rendering more often, it's just more honest. Many of you will have this setting at 15 (due to the new minimum) and will want to bring it up to 30 or 60.

* Repaints only happen when some code asks for them. I probably have not found all the places where repainting should be requested, so please let me know if you notice something not updating when it should be updating.