Extended String Class for translate with Yandex.Translate.
Show aviable languages on API Yandex.Translate.
require "yatr"
# Valide translate from to
puts "привет".translate "ru", "en" # => hi
# Valide translate to
puts "привет".translate "en" # => hi
# Invalide translate from to
puts "привет".translate "foo" "bar" # => привет
# Invalide translate to
puts "привет".translate "foo" # => привет