[CA-125183] Fix: XenCenterSetup.exe to install, requires .NET 3.5 rather than .NET 4 on Windows8 x64, WS 2012, WS 2008 SP2 x32

Signed-off-by: Gabor Apati-Nagy <gabor.apati-nagy@citrix.com>
Merge pull request #6 from GaborApatiNagy/master

[CA-125183] Fix: XenCenterSetup.exe to install, requires .NET 3.5 rather...