HUE-1629 [core] Improve 'projects' section on home page if no projects are present

Added menu link to make user aware of that and manage projects on click
HUE-1630 [oozie] Dataset timezone not saved at creation

Fixed clone select inputs
[beeswax] Re-enable tests depending on configOverlay
[beeswax] Make sure ';' is stripped when calling explain
HUE-1636 [oozie] Coordinators actions do not appear because of OOZIE-1481