The devenv.exe /Upgrade is apparently not supported by Express, but that
is currently only needed for the 2015 version, so try to keep 2013
Express working.

Change-Id: I40bb8a5c9583381e89ede2e014e6e095016bbe11
Reviewed-on: https://gerrit.libreoffice.org/17275Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Vasily Melenchuk <vasily.melenchuk@cib.de>
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>