pgsql: Specify which versions of the Platform SDK are supported

Specify which versions of the Platform SDK are supported

Anything including Visual Studio 2010 compilers is not yet
supported for building on Windows.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/9e1526eddd34bf78327a9e7be3db47a60b59b688

Modified Files
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doc/src/sgml/install-windows.sgml | 12 ++++++++++--
1 files changed, 10 insertions(+), 2 deletions(-)