Andrew Tridgell 2b464472c1 - added SMBntrename test suite ...

- allow username of form DOMAIN\username or DOMAIN/username

- added ntrename to gentest

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ref_util.c

first public release of samba4 code

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ref.h

first public release of samba4 code

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vfs_ref.c

- added SMBntrename test suite

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