use gem debugger instead of deprecated ruby-debug19
use relative path to script to load config.json
require_relative for own scripts
adds empty options hash into messages for campfire connector
changed min ruby version to 1.9.2
removed debugging output
Merge pull request #43 from stwirth/fixes

Update campfire connector and require 1.9.2

* use require_relative
* change min ruby to 1.9.2
* remove debugging output