Loads of changes.
Implemented kom-* synonyms for almost all lyskom-* hooks. The old names shall be considered obsolede. Highilghting of asynchronous messages as with texts. Support overlays when doing lyskom-insert on the result of lyskom-format. Fix lyskom-insert to handle special-insert properties that are adjacent to each other. Fix lyskom-unicase so it isn't fooled by a lying Emacs. Hopefully guard against missing diff command when calling ediff-buffers. Added user-hooks.el, a new place for hook functions that users might want to use elsewhere. Added some kom-change-conf-hook and kom-after-change-conf-hook functions to this file.