Bug: Slack API Migration

[adamhorden]

bug/slack_api

Fix bug introduced by Slack API changes 🤓 💥 .

/usr/lib/node_modules/slack-irc/node_modules/irc/lib/irc.js:849
                        throw err;
                        ^

TypeError: Cannot read property 'map' of undefined
    at Bot.sendToSlack (/usr/lib/node_modules/slack-irc/dist/bot.js:295:60)
    at emitMany (events.js:147:13)
    at Client.emit (events.js:224:7)
    at Client.<anonymous> (/usr/lib/node_modules/slack-irc/node_modules/irc/lib/irc.js:557:22)
    at emitOne (events.js:116:13)
    at Client.emit (events.js:211:7)
    at iterator (/usr/lib/node_modules/slack-irc/node_modules/irc/lib/irc.js:846:26)
    at Array.forEach (<anonymous>)
    at Socket.handleData (/usr/lib/node_modules/slack-irc/node_modules/irc/lib/irc.js:841:15)
    at emitOne (events.js:116:13)
    at Socket.emit (events.js:211:7)
    at addChunk (_stream_readable.js:263:12)
    at readableAddChunk (_stream_readable.js:246:13)
    at Socket.Readable.push (_stream_readable.js:208:10)
    at TCP.onread (net.js:601:20)

Signed-off-by: Adam Horden adam.horden@horden.engineering