Docker container currently broken

[phackstock]

There are currently a number of issues when trying to build the Docker container. Including:

• the apt-add-repository command is not found
• missing version info by omitting the .git folder
• missing notebooks by omitting the notebooks folder

FYI @jkikstra, @lewisjared, @znicholls, @gidden

[jkikstra]

I never used it.

Not sure about @znicholls @lewisjared or @chrisroadmap, but otherwise it could perhaps be deleted?

[chrisroadmap]

nope, never used it