Update to 1.8.4.
    
    Also:
    - Mark the LICENSE.txt with the license macro.
    - Spice up the Source0 URL so it puts the name in the source
      tarball.
    - Use a correct project URL.
    - Provide a python2-pyramid package.
    - Provide the correct executable names for the python2- and
      python3- subpackages.
    - Leave old python3- executables for the time being, even though
      they are not the correct names.
    - Sort dependencies lexigraphically.
    
    Signed-off-by: Randy Barlow <randy@electronsweatshop.com>