sieve-manage.el (sieve-manage-open-server): Don't quote lambda; Use plist-get rather than CL's getf
(sieve-manage-parse-capability): Avoid CL's remove-if
* eww.el (eww-submit): Compute the submission URL correctly.
mml2015.el: Limit the size of key images inserted into articles

* Add `mml2015-maximum-key-image-dimension', which specifies a limit
  on the width or height of any key images that are inserted into the
  article buffer.