Cleaning up and updating code

.gitignore

.rubocop.yml

Rakefile

lib/passwordstate.rb

lib/passwordstate/client.rb

lib/passwordstate/errors.rb

lib/passwordstate/resource.rb

lib/passwordstate/resource_list.rb

lib/passwordstate/resources/active_directory.rb

lib/passwordstate/resources/address_book.rb

lib/passwordstate/resources/document.rb

lib/passwordstate/resources/folder.rb

lib/passwordstate/resources/host.rb

lib/passwordstate/resources/password.rb

lib/passwordstate/resources/password_list.rb

lib/passwordstate/resources/permission.rb

lib/passwordstate/resources/privileged_account.rb

lib/passwordstate/resources/remote_site.rb

lib/passwordstate/resources/report.rb

lib/passwordstate/util.rb