release 1.2.0
release 1.2.0

slackapi/node-slack-sdk,DLavin23/dale,slackapi/node-slack-sdk,cpww/dale,peernohell/node-slack-client,slackapi/node-slack-sdk,peernohell/node-slack-client,slackhq/node-slack-sdk,slackapi/node-slack-sdk,dshahin/node-slack-client,Shiggiddie/dale,paulcbetts/node-slack-client,slackhq/node-slack-client