JBPM-5728: Upgrade lienzo-core to 2.0.284-RELEASE. (#399)
JBPM-5728: Upgrade lienzo-core to 2.0.284-RELEASE. (#399)


kiereleaseuser/droolsjbpm-build-bootstrap,kiereleaseuser/droolsjbpm-build-bootstrap,drdaveg/droolsjbpm-build-bootstrap,droolsjbpm/droolsjbpm-build-bootstrap,porcelli-forks/droolsjbpm-build-bootstrap,ryanzhang/droolsjbpm-build-bootstrap,porcelli-forks/droolsjbpm-build-bootstrap,drdaveg/droolsjbpm-build-bootstrap,droolsjbpm/droolsjbpm-build-bootstrap,ryanzhang/droolsjbpm-build-bootstrap