fix bugs in new-message, simplify args to wrap-autocomplete
fix bugs in new-message, simplify args to wrap-autocomplete

Didn't seem necessary to have textarea-view and autocomplete-results be
arguments to wrap-autocomplete - and in any case, wrap-autocomplete was
ignoring the results-view argument

braidchat/braid,braidchat/braid,rafd/braid,rafd/braid