Fix coffeescript loading error in example
Fix coffeescript loading error in example

Closes #24

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