v1.7.2-beta.1

• Updated extension gallery: there's something like 14 new ones and a bunch of fixes
• Fixed stretch extension just not really working at all
• Fixed bug where saving project could change script execution order. As a result your projects might become 0.1% larger. We believe this is an acceptable tradeoff.
• Fixed exporting addon settings
• Various things to prevent custom extensions from accessing things they shouldn't
• Fixed a crash in the folders addon
• Not actually 100% sure if the app still works on Windows. Let us know if it doesn't.