Changes

Summary

1. Replacing image policy (details)

Commit 5ae1179eb4784e764cfe67902eba7cf939bcb410 by Alex Muravya Replacing image policy
	src/main/java/eu/yatech/hub2swarm/app/ImageReplacePolicy.java (diff)
	src/main/java/eu/yatech/hub2swarm/ui/StackView.java (diff)
	src/main/resources/db/migration/V5__Image_Replace_Policy.sql (diff)
	src/main/java/eu/yatech/hub2swarm/model/Stack.java (diff)
	src/main/java/eu/yatech/hub2swarm/dao/StackDao.java (diff)
	src/main/java/eu/yatech/hub2swarm/service/StackService.java (diff)
	src/main/java/eu/yatech/hub2swarm/app/Deployer.java (diff)