[Libreoffice] [REVIEW] Use different Windows registry keys than OOo

[Tor Lillqvist]

Looks good to me, except that I would prefer to use the full "LibreOffice" name spelled out in our preferred CamelCase form in all cases, even where OOo uses lowercase "openoffice" or even (the horrible) "soffice". We don't need to follow those historical precedents.

Anyway, with or without that spelling change, approved by me for the libreoffice-3-3 branch.

--tml