0.8.0 "Double Jump"

This release exists primarily to fix a variety of small bugs in the releases just before it. It's a pretty wide variety... Hopefully the more detailed configuration options for atlases/emoji/icons, which were added here, should avoid one class of bugs where images look wrong relative to text. Another bug regarding images and text was that scaling up a font moved the letters differently from emoji or other images (this is fixed too). Other issues affected wrapping (which should behave better when a widget changes size), pooling (which is now entirely removed, because of some nasty bugs it could cause), TextraWindow's columns (it had a messed up Table inside), and the "fancy underlines" for error and info mode (which were always red by mistake). There's a new geometric-style font, NowAlt, and over 4000 icons from game-icons.net ! I hope this release is more robust than the last few, but if there are issues, I'll be around to fix them.