Merge pull request #846 from bugzmanov/master

[RJA-1322][feature] Links to specific workflows
[RJA-1711][feature] -  Modify workflow engine to support non-fatal step termination
Merge pull request #847 from rsvato/master

 [RJA-1711][feature] - Modify workflow engine add warning status
[RJA-1814][fix] null pointer if no access to genesis
[RJA-1819][fix] lovely bug