Cannot build project

[Vertmo]

Hi !
I'm looking forward to contribute to this project, but I'm having trouble building it in the first place.
The generate.py script raises several errors when executed with python3.7 :

• related to software I miss (mainly npm stuff) that I think should be listed in the README
• problems in the python script itself (mainly problems of string != binary string)

I'll be trying to correct that in my next PR.

[Vertmo]

I made some changes to fix these issues in #62