use 2.1.5 for development
specify more dependency versions
add methadone
add rdoc
put the correct url in README.md
use methadone for cli handling
use the methadone cli logger instead of p/puts
add cucumber
added cucumber
rubocop suggestions
run rspec without verbose, but with warnings
Ignore rspec state for link-time-setting capability test

1. The check was broken due to a missing bracket
2. It is not needed