[Libreoffice] License statement

[Tomas Hlavaty]

Hi,

all my current and past contributions made to the LibreOffice project
are done under the LGPLv3 / MPL1.1 or later version of these licenses.
Until further notice, all my future contributions to the LibreOffice
project are available under the LGPLv3 / MPL1.1 or later version of
these licenses.

Thank you,

Tomas