Only use WINVER to set the minimum version of Windows platform.
Only use WINVER to set the minimum version of Windows platform.

Doing this simplifies things by setting the version in one place,
since the platform granularity that NTDDI and WINNT allow for is not needed.

Also sort the defines by groups and alphabetically.

google/omaha,google/omaha,google/omaha,google/omaha,google/omaha