putUser: In both signUp and putUser, '_id', '_rev', 'name',
'type', 'roles', 'password', 'password_scheme', 'iterations',
'derived_key', 'salt' are now all reserved words, and 'metadata' is
not a reserved word anymore.
putUser: In both signUp and putUser, '_id', '_rev', 'name',
'type', 'roles', 'password', 'password_scheme', 'iterations',
'derived_key', 'salt' are now all reserved words, and 'metadata' is
not a reserved word anymore.