#414424 by sun, chx, Arancaytar, yched, et al: Introduce Form API #type 'text_format' for additional DX/security around rich text fields.

- Patch #444344 by kkaefer, sun, Rob Loach: this change introduces a jQuery .once() method which streamlines the way behavior functions work. Previously, we had to manually ensure that an element is only initialized once. Usually, this happens by adding classes and selecting only those elements which do not have that class. However, this process can be separated out into a jQuery ‘filtering’ function which does all the grunt work.

#323112 by dmitrig01, kkaefer, quicksketch, frando and many many more: Now presenting... Vertical Tabs. Fantastic new UI improvement for node forms and hopefully more in the future.

#304330 by ximo, alpritt, Amitaibu, edmund.kwok, Xano, ff1, BrightLoudNoise, et al: Dramatically improved text format widget. USABILITY AWESOMENESS.

#125030 by kkaefer, quicksketch, dvessel, Steven, and John Resig: Allow compatibility with other JavaScript libraries.