Merge pull request #25 from skolekonov/master

old jobs were moved to the new branch
Update gate-savanna-integration.yaml
Old config-file was deleted. Instead it were added 3 new config-files
Merge pull request #27 from ylobankov/master

Old config-file was deleted. Instead it were added 3 new config-files
Savanna config was corrected for support "hdp" plugin
Merge pull request #28 from ylobankov/master

Savanna config was corrected for support "hdp" plugin
itests job is improved

A proposed patchset is rebased to current master before running integration
tests now.