Update .gitignore to manage IntelliJ files
Update rabbitmq client to 3.2.4 version
Log with log4j
Change version to 1.7-SNAPSHOT
Update README with dependecy specification set to 1.6

The 1.6 release is the latest stable
Merge pull request #4 from vgammieri/master

Add support for rabbit amqp-client 3.2.4 + Log4j12