Bump version 1.1.4
Bump version 1.1.4

aki017/slack-ruby-gem,aki017/slack-ruby-gem,nicolasleger/slack-ruby-gem,nicolasleger/slack-ruby-gem,cocktail-io/slack-ruby-gem,query-string/slack-ruby-gem,query-string/slack-ruby-gem,cocktail-io/slack-ruby-gem