Since 2018 (which is the year of most recent Grab release) I have tried to do large refactoring of code base of Grab library. Which ended up with semi-working product which nobody uses, including me. I have decided to reset all project files to the state of most recent pypi release 0.6.41 dated by june 2018. At least, now the code base corresponds to live version of the product which is being used

