Silence some warnings.
Features: Record for MSVC 2010-2013.
Make sure tests for non-available features fail for the right reason.
Merge topic 'MSVC-features' into next

a1f0849e Make sure tests for non-available features fail for the right reason.
c9426fbd Features: Record for MSVC 2010-2013.
6574b07b Silence some warnings.