Update get_driving.md

Update Ip-Adress change to Hostname

Dev

* unrolling the salient method in keras-vis into 2 parts
* putting the optimizer which can be kept static into the initialization
* also remove unused code and imports

add ~/ to "cd projects" command

Update donkey.md

Simplifying cd to projects dir

Remove deprecated message argument from pytest.raises().

i guess the "--tub" was missing for the "makemovie" command usage example