AMBARI-4372. Write unnitests for HIVE install script on HDP1 and HDP2
(Arsen Babych via onishuk)
AMBARI-4387. Write unnitests for YARN install script (Arsen Babych via onishuk)
tests for YARN install script# Please enter the commit message for your changes. Lines starting
AMBARI-4392. Storm: Add widget for Supervisor's live/dead nodes count. (Denys Buzhor via akovalenko)