[REVIEW 3-5] registry key in SDK installer

[Andras Timar]

Hi,

http://cgit.freedesktop.org/libreoffice/core/commit/?id=a4c725f72df1253e5d4e61ede750b4b24c1e1672
This commit fixes a (potential) problem in SDK's Windows installer.
The install location of corresponding LibreOffice version could not be
detected correctly.

Please cherry pick to libreoffice-3-5 branch.

Thanks,
Andras