Add OHS 14.1.2.0.0 docker-images (#2907)

* Adding OHS 14.1.2

* 14.1.1.2 Dockerfile edits

* Fix README.md

* Correct md5sum in buildDockerImage.sh

* Correct md5sum in buildDockerImage.sh

* Add other methods to obtain the OHS images

* correct typo

* Address comments for Dockerfile and helloWorld.html

Author: mriccell