Merge pull request #799 from bugzmanov/fb-remoting

[RJA-1557][feature] UI to support hypermedia
[RJA-XXX][fix]: $envConfig built-in variable was not added to create workflow
in case of its declaration had no variables block
Merge pull request #800 from ddurnev/agents

[RJA-XXX][fix]: $envConfig built-in variable was not added to create workflow
Merge pull request #801 from bugzmanov/fb-remoting

[RJA-1557][fix] env config to be returned by root controller
[RJA-1469] [feature] - Links: tests fixed + some sec. rules changed/added
[RJA-1782][fix]: fixed groovy workflow validation
Merge pull request #802 from ddurnev/agents

[RJA-1782][fix]: fixed groovy workflow validation
Merge pull request #803 from rsvato/agents

[RJA-1469] [feature] - Links: tests fixed + some sec. rules changed/added
[RJA-1652][feature] gateway marker and logging aspect