[Systems] Adventure book activity

[Tony Anderson]

I have put this repository in my github account: tony37 for transfer to 
the SugarLabs github.

This is based on downloads from ASLO without change. This activity 
worked on Ubuntu 16.04 sucrose and is then assumed to work on all models 
of the XO.

It does not contain a NEWS file. This can be generated from the git 
commit messages.

I assume README.md to be added after the transfer.

Let me know if there are anything else i should be doing with these.

Tony