Experimental visualisation -   - Fix json node id reference   - Allow pretty print
Experimental visualisation -
  - Fix json node id reference
  - Allow pretty print

lhupfeldt/jenkinsflow,lechat/jenkinsflow,lechat/jenkinsflow,lhupfeldt/jenkinsflow,lechat/jenkinsflow,lechat/jenkinsflow,lhupfeldt/jenkinsflow,lhupfeldt/jenkinsflow