At Francois' request, I've made a project page for a vcalendar mutt filter I wrote.
I went the way of a generic name because I imagine I'll write at least one more filter, and this way I can happily add it to the existing project.
(a little) More information is available over on the project homepage
Can you please publish a link to the raw file? The current link points to a HTML'ized version.
Thank you