1. Git will now be ignoring files whose names start with `exp_`.
If you want to do quick experimenting but are not ready to add
such files to repository, name them starting with `exp_`. For
example `exp_cool_motion.py`.
2 Use the file `nao_defaults.json` to store the global project
settings (such as IP address of the robot, or our preferred
resolution). In your scripts make sure to load the default
values from that file if needed (i.e. do NOT hard-code any
configuration in your scripts). `nao_defaults.json` is a file
with the stable config. If you need to experiment with configs,
create a file `exp_config.json`.
3. Colorpicker is now a saner tool (you can specify output width, and
the default IP address of the nao is pulled from the JSON config
file).
