step 1 to idempotence: changing ServiceDeploymentPreparer logic
refactoring ServiceDeploymentPreparer
idempotence: running update not for not modified services
making alarm more robust
adequating Airline response for tests involving replication
publishing new airline version
writing more on tests output
setting Airline and TravelAgency to Java 6
fixing access to AWS image id and instance type properties
fixing Airline pom: back to war type
improving access to CloudConfiguration's