Atomic Tangerine

• Read blog post about this release.
• Keyboard shortcuts panel: Add a list of all keyboard shotcuts. Access with Ctrl/⌘ + Shift + ? or click keyboard button in footer.
• Add external library: Better UX for searching third party libraries.
• Improvement: Code panes now go fullscreen when double-clicked on their headers - which is much more intuitive behavior based on feedback from lot of developers.
• Improvement: Add allowfullscreen attribute on iframes. Thanks @ClassicOldSong
• Bugfix: Stop screenlog.js from showing up in the exported HTML.
• Popular external libraries list updated. Thanks @jlapitan