Fix the kafka issue (#869)
* added 3.11.51 host template
* Add Hands-On Lab for Advanced Cloud-Native App Development for RHTE 2019
* update workload
* update workload
* fix deployment issue
* fix deployment issue
* fix deployment
* update num_users
* delete dummy file
* update ocp_username
* update cdw pvc setting
* fix the Import realm
* update m4
* update cdw
* update workload to add kafka, knative
* delete Untitled-1
* add load-balancer-attributes
* add prewarm cdw
* add prewarm cdw
* add prewarm cdw
* remove node scaling
* Implement Post Workload deployment tasks
* make sure if che is up
* make sure if che is up
* make sure if che is up
* improve output workshop info
* readjust knative-serving view setting
* update pipeline version
* fix kafka issue