Minor changes:
- Updating all course categories that are part of a loop
- Moved functions to tool_health scope
- Moved tests to tool_health scope
- Raised issue importance
- Minor coding style changes
Thanks to Marko Vidberg.
New PARAM_COMPONENT, PARAM_AREA and PARAM_PLUGIN + fixing of hopefully all current incorrect parameter types. This should help with diagnosing of incorrectly named 3rd party plugins too.