Restored the demos on Jenkins
Restored the demos on Jenkins


Former-commit-id: eb20847966a35924c9b126c56961665576cdfe29 [formerly 64831829c4552faad3a0ac702f465cac34115212]
Former-commit-id: 0893339c81af58039c5e524fe6ef71fb2791126f
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine