CLOUD-148 added azure rollback
CLOUD-148 failure handling under the provision
CLOUD-148 fixed exception message in removenode
CLOUD-148 fixed exception handling in rollback logic
CLOUD-148 removde unused field
Merge pull request #278 from sequenceiq/rollback

Rollback
CLOUD-9 gcc integration
CLOUD-9 fixed startup script
CLOUD-9 added deletion and removenode and addnode
CLOUD-9 added pollerservices
CLOUD-9 added pollers and some modification on gcc domain
CLOUD-9 added dns commands
CLOUD-9 credential initializer
CLOUD-9 fixed setup in gcc
CLOUD-9 gcc rollback added