* Clean exit on errors
* Avoid unnecessary scrolling
* Fix bug where removable media wasn't updated
* Add signal handler, solution from https://stackoverflow.com/questions/1112343/how-do-i-capture-sigint-in-python
* Display a splash screen on startup
* Introduce stop splash
* Add parameters to enable the SIGTERM handling to take effect
* Change to a less busy stop splash
* Less busy start splash
* Iterate on splash bitmaps
* Iterate on splash bitmap
* Add check for libopenjp2-7-dev in the start script
* Iterate on splash bitmap
* Iterate on splash bitmap
* Read rotation from the 1st command line arg
* Configure screen rotation during installation
* Better argument validation + use human readable arguments
* Cleanup