Change room id to string. Database changes are following later
Includes build data in message options for chat services to display additional information
Adaptes to slack.rb v0.0.5
Set reconnect=true on ActiveRecord db connection
Adds attachments to Slack adapter to give the message a nicer touch
Adds new settings JANKY_CHAT_SLACK_USERNAME and JANKY_CHAT_SLACK_ICON_URL
Uses slack.rb attachment struct
Uses room name for slack notifications

Conflicts:
	lib/janky/chat_service/slack.rb