XFEM: Fixed memory leak in primary variable mapper.
XFEM: Removed obsolete files.
XFEM: Cleaned up and moved some functions to the XFemElementInterface.
XFEM: Applied uncrustify on xfem-related files.
XFEM: Forgot one file in previous commit.
Merge branch 'master' of https://github.com/Micket/oofem