v0.2.0

• Preserve user supplied casing for chat literals. (bug-fix)
• Refactor formatting code to handle various adapter better. Tested support for
  slack, hubot and xmpp.
• Message truncation over 500 characters to preserve chat context. HipChat does its
  own truncation so depending on that.
• Authentication with StackStorm is now skipped in case auth is disabled. (bug-fix)
• Best attempt to include execution details. (new feature)
• Rather than a single message response to an execution comprises of multiple small
  messages. This allows formatting & truncation to be handled separately. (new feature)