Issue-Ref: 3538
Signed-off-by: Alexander Diewald <diewald@fortiss.org>

Signed-off-by: Simon Barner <barner@fortiss.org>

* Since the tooling helpers used in the svn installation and the git
  version, a re-rating of all files was required (less work than fixing
  the tooling code that would be only used once).
* Updates the hashes of the classes in the .rating files.
* Removes empty .rating files from directories without ratable files.

Signed-off-by: Alexander Diewald <diewald@fortiss.org>

Signed-off-by: Alexander Diewald <diewald@fortiss.org>

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