Git is an open source software tool that allows groups of people to work together harmoniously on the same code project at the same time. So, it's a Distributed Version Control System (DVCS). The projects are published on the cloud, for example, in the GitHub repository https://github.com/ (there are other websites that accept Git projects, for example, Bitbucket at https://bitbucket.org/). Git maintains local copies of these projects on your computer(s). For this to work, the Git tool must be installed locally as well. To get started, create an account on the GitHub website or sign in if you already have one. Go to the https://help.github.com/articles/set-up-git site and click on the Download and install the latest version of Git link. If necessary, choose your OS and let the wizard install Git on your machine with the default options. The code from this book resides in the https://github.com/Ivo-Balbaert/learning_dart GitHub repository. To create...