Added a trash folder patch for non-vanilla mutt, following the same recipe that was used when someone else added edit-threads-patch from the same source.
Created attachment 62491 [details, diff] Ebuild patch
Created attachment 62492 [details, diff] Trash folder patch Source: http://cedricduval.free.fr/mutt/patches/download.html#trash
I am very hesitant to include this because gentoo's mutt has already diverged heavily from upstream and it's getting difficult to maintain the patch list. I would prefer to wait for this to be included upstream before providing it in Gentoo.