Windup 210: Simplification of Classification and Hint

Not sure if you will like the classification simplification, it is quite hacky.
However, I seperated both simplification to two different commits.

Both of them are now able to use the "pass variableName from Iteration" simplification.
We should also have some shared OriginModel interface, which would have an URL, line, and offset. This would be more universal - various things may come from a file, a file in an archive (java.io.File not applicable), web service, REST service, XML file in whose content we can refer to using XPath, AS CLI, and other sources which we will need to refer generically.