Reference Plugin released and some notes

You can now download the reference plugin for the glucomodul project. It is made for all developpers who plan to write their own plugin. It can be used as some sort of SDK.
Please note that the onetouch_ultra packages had some mistake in the Makefile which will make them not installing when some other plugin is already installed. But this is not very tragic and will be fixed with the next version of KPumpe.