CLOUD-333 added pollerservice to ambari startup
CLOUD-336 added style to emails
CLOUD-336 inline style in letter
CLOUD-336 wremoved unused method
CLOUD-333 ambari startup listener deleted
CLOUD-333 removed duplicated context init
CLOUD-333 fixed poller
Merge pull request #374 from sequenceiq/mail

Mail
CLOUD-333 fixed component
CLOUD-333 cs fix
Merge pull request #372 from sequenceiq/poller

Especially for @keyki