add todotize_project class
update todoist gem

use fork gem so my pull request isn't received responce
implements cli and add tasks command to get uncompleted tasks
add feature task sort
add command: unread

allow to read unread mail list
[refactor] imap login process
add exist? method into todoistize_project class
add command: tosoistize

import unread mails into todoist
add command: done
add command: setup