Feature Request: Remember Code Folding

I'd like to make a feature request to add the option to remember code folding on subsequent loads of a project.

I Googled around, and I don't see a built-in way or plugin to help with it, but it does look like CodeMirror's function doFold in foldcode.js (/addon/fold/foldcode.js) could be edited to save the fold ranges, which could be folded again when a project is loaded/reloaded.

Thanks! Love the extension!