The role of the master server as the party controlling every part of the
cluster is not well reflected in its name and has caused confusion among
users on several occasions. Rename master to controller to better
reflects its role.
Check that Master/Instance/Control plugins export the correct class and
that this class is a subclass of the correct base class. This gives a
better user experience when plugins are incorrectly set up and loads a
duplicated clusterio/lib, and when accidentally using the wrong name
when developing plugins.
Updates to Node.js error reporting have caused tests to fail due to them
being hardcoded to expect a certain format that has since changed. Fix
by making Node.js create the error message for us.
Move the code for loading plugins infos from Node.js packages into a
separate module in order to break it out from lib/plugin.js which is
also used on the web interface side. This resolves a warning of using
an expression with require on the webpack build.
Hornwitser