- UniqueIdUtils:
    - Remove fixMissingIDs(final ITopLevelElement modelElement)
      (only used in one place)
    - fixMissingIDs(EObject object, EObject existingModel): Do not wrap
      model modification into a command. This is up to the caller of
      this method (e.g., the command stack is not available in tests) 
- Remove IDMigrationProvider: Fixup of missing / duplicated is handled
  in ModelContext
- ModelContext: Use nonDirtyingCommand, and automatically save model
  in case IDs have been fixed

Issue-Ref: 3369
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>

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

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

- Keep original ratings

refs 3120,3368

refs 3120,3368

refs 3120,3368

Fix typo

refs 2983

refs 3219

refs 3241

refs 2998

refs 2998

refs 3241

refs 3240

refs 3241

refs 3243

- removed deleteAllElementsWithType()
- moved featuresToStrings() to MigrationService
refs 3243

- generateMissingIDs() bug fix: generate missing ID also for given 'existingModel', not only for its offspring.
refs 3067

- Add fixMissingIDs(EObject object, EObject existingModel), a method that generates all missing IDs of the given sub-model.
refs 3067

refs 3249

refs 3249

- Mark classes that should be kept and references to issues where there will be reintegrated
refs 3240

are marked as @Deprecated //ucd
refs 3240

refs 2950

refs 2895

refs 3194