Fixes/ new features

[coreyjansen]

• Changed Intercom client to use token instead of app id and key
• Changed function from using the users API function to contacts as it no longer worked
• When a new user is created it will Tag them when the desired tag. I used a tag called SMS to allow me to only send text messages back to people that contacted through the SMS originally vs everyone who came through my intercom
• Replies to the conversation of the user if one exists if it doesn't then it will create a new one