[Libreoffice] duplication of ItemHolder2

[Matúš Kukan]

Hello,

I'm trying to build bigger libraries but I have small problem with ItemHolder2.
It's implemented in svl/source/config/itemholder2.cxx and also in
svtools/source/config/itemholder2.cxx.
The one in svtools seems to be more general but svtools's library is
linking against the svl one.

Any suggestions whether just to rename or probably better to reuse the
one in svl ?

Matus