Use javaImport.py instead of javaImport.sh in running 101meta rules for Java

[rlaemmel]

That javaImport.py file would use the *.extractor.json files left behind by the fact extractor.

We should really stop use the grep-based approach (which javaImport.sh).

By the way, we don't even need to rewrite the rules because we can make javaImport.sh call javaImport.py, but please save the old javaImport.sh under some helpful name in the same dir so that we can look at it for pedagogical purposes, if needed.

[martinleinberger]

Should be taken care...