Add: rules to ignore images folder and config file.
Refactor: path to images folder is configurable through the configuration file now.
Implement check for images folder existence and creation if needed.
Refactor: path to videos folder is configurable through the configuration file now.
Implement check for videos folder existence and creation if needed.
Refactor: rename matplotlibrc to matplotlibrc.example, so that now user should explicitly use matplotlibrc if he wants to.