ufz/ogs — pull request #386 by rinkk (2014-04-03 13:52:52+00:00)
Title: Removal of duplicate code in MeshLib

* uses functionality from ```DuplicateMeshComponents``` in the ```ElementExtraction``` and ```MeshRevision``` classes.
* replaces duplicate code in the ```removeMeshElements``` utility with calls to ```ElementExtraction```