Fix String#to_lisp
(yardoc) do not parse LICENSE.txt
Add yardoc tasks
Update gem dependencies in gemspec file.
Fix String#to_lisp
Fix String#to_lisp test
Loads of documentation.
Improve bin/spectator-emacs
Fix Gemfile to use the gemspec for the dependencies
Remove useless bin/spectator-emacs.rb file.
Use RspecOrgFormatter.