Since the API is now able to refresh the data, it is possible for the plugin to use the API in the monitoring thread as well.
This commit also includes some minor make up improvements of messages.
All configuration files and all messages files should now preferrable be
done in Hjson. This format supports, i.a. features, multi line strings
and commenting. This greatly improves readability.
All installation and documentation files are also updated in this
commit.
