Acumo AI : How to verify the installed acumos version #cal-invite


Hi All
I want to install "demeter" version in hope of solving "pipeline" issue.
When I last installed acumos, did via 
"git clone "
By this I got the code from "master" branch (Which is as of now 46 commit ahead of demeter branch"
ubuntu@acai-server:~/system-integration$ git branch --all
* master
  remotes/origin/HEAD -> origin/master
So ideally all issues related to "pipeline" should have been fixed and present in "master" branch.
But my clarification points
1. How  verify my currently installed acumos release , via any command of acumos GUI ?
2. Is this the correct way to install "demeter" release ?
  git clone --single-branch --branch demeter