Get things ready for the real 3.0.
Merge pull request #108 from apenney/30-release

Finally release 3.0!
correct read and write parameters order on set_permissions and list_permissions, read-write perms were in bad order
#2 correct read and write parameters order on set_permissions and list_permissions, read-write perms were in bad order
#3 correct read and write parameters order on set_permissions and list_permissions, read-write perms were in bad order. RSpec test correction
RabbitMQ Environment Variables
Merge pull request #113 from powermedia/master

correct read and write parameters order on set_permissions
Merge pull request #114 from instaclick/environment_variables

Add Environment Variables
Add Variables Configurable in rabbitmq.config
Merge pull request #115 from instaclick/config_variables

Add Config Variables
Fix the tests on the latest master.
Merge pull request #117 from apenney/specsfix

Fix the tests on the latest master.