Clang format run on near-the-header lines.

Happy New Year

Unfortunately the Visual Studio 2015 does not support
the platform independent style for the function attributes.
Although it is a c++11 standard.

For others use more specialized includes like fstream.

Everything works automatically except for global symbols where some manual work is required. See the BuildInfo example.

Fixes compile error on Mac.

This potentially saves a second copy compared to using const
reference. See Effective Modern C++, Item 41.

Especially on iterator types and 'new' allocations.

Disabled PCH on Visual Studio 2015.

Set C++ standard the right way.

This is also untested and not compiled anywhere because of the undefined
macro MSVC.