CLOUD-123 extend blueprint configuration properties

Conflicts:
	src/main/java/com/sequenceiq/cloudbreak/service/cluster/AmbariClusterInstaller.java
	src/main/resources/azure-init.sh
Merge pull request #244 from sequenceiq/azureports

CLOUD-123 extend blueprint configuration properties
CLOUD-114 increase polling time
Merge pull request #245 from sequenceiq/polling

CLOUD-114 increase polling time
CLOUD-129 fixed issues on backend side
CLOUD-129 fixed tests
CLOUD-120 ssh location validation on backend
CLOUD-120 ssh location validation on backend
CLOUD-120 fixed cs problems
CLOUD-95 modified instance type response (aws template)
Merge pull request #250 from sequenceiq/fix-aws-instanceType

CLOUD-95 modified instance type response (aws template)
CLOUD-24 Doc changes, to make it more specific.

Was confusing, whether it's a manual or automated step
Merge pull request #251 from sequenceiq/doc-fix

CLOUD-24 Doc changes, to make it more specific.
CLOUD-120 added few more test
CLOUD-141 fixed log message and deleted unnecessary repository calls
CLOUD-141 removed unused variables
Merge pull request #249 from sequenceiq/ssh-check

Ssh check
CLOUD-141 fixed review commentss
CLOUD-141 delete failed log message added
CLOUD-141 String format using in logger