Essentially, this patch provides the option to overwrite only matching
Extended Attributes, instead of all of them, treating the ext. fields more
like normal fields.
Several functions added to Members::Attributes with corresponding tests.
[ LL ref. 342 ]
Signed-off-by: Galen Charlton <galen.charlton@liblime.com>
Signed-off-by: Henri-Damien LAURENT <henridamien.laurent@biblibre.com>