added possibility to download all paradigms programmatically (curl http://localhost:300/paradigms/dump)
more TODO items added to README
added possibility to select paradigms to dump by status (ready, review). default is to dump all paradigms
renamed
added String#to_bool
Paradigm can have only two statuses: ready and review
#dump renamed to #peek; a different #dump is added that works as #peek but additionally marks paradigm as dumped in the DB