Updated docs/emacs and docs/scripts

  * emacs/emacs.org: use explicit name for dictionary (was 'nil');
  * scripts/misc.org:
    - rewrite script 'daemon-toggle', new version don't
      use any 'conf' files, code for daemon start and stop is unified;
    - touchpad-toggle, emacs-cl: added check for program existence;
    - show-tip: removed that script (moved to 'obsolete' section) as
      well as it's supplementary files: 'read-tip.lua', 'tip-files.lua'
      and 'conkyrc-show-tip'.