Updated Resque::Worker for Resque 1.23
Updated README for fork
Updated README for heroku environment variables
Corrected require 'heroku' to 'heroku-api'
Merge branch 'develop' of github.com:rchampourlier/hirefire into develop
Updated environment/heroku to rescue Heroku::API::Errors instead of RestClient exceptions
Increased sleep time, fixed exeception on fire with multiple workers, print when hitting the API.
Updated logging message format
Merge branch 'develop'

Conflicts:
	lib/hirefire/environment/heroku.rb