add support for multiple lines option in pro
add support for multiple lines option in pro

howdyai/botkit,healthchatnow/hcn,EliKrumholz/botkit,DJ1K1/botkit,DJ1K1/botkit,howdyai/botkit,dhulser/slack-reporting-bot,acrollet/botkit,samuelsan/YelpBot,howdyai/botkit,howdyai/botkit,ouadie-lahdioui/botkit