Merge pull request #39 from codeclimate/slack_markdown

Allow markdown in slack messages.

Author: calavera

lib/cc/services/slack.rb

@@ -40,7 +40,8 @@ def speak(message, color = nil)
     body = { attachments: [{
       color: color,
       fallback: message,
-      fields: [{ value: message }]
+      fields: [{ value: message }],
+      mrkdwn_in: ["fields", "fallback"]
     }]}
 
     if config.channel