Version 1.1.0

Version 1.1.0 brings a reorganized directory structure that should meet most peoples' expectations better. It also makes converting from opaque type to underlying type for the arguments of binary operators free, rather than a copy construction (although this only matters for number-like user-defined types, and makes no difference for built-in types).

This library is still not Windows-friendly, owing to lack of expression SFINAE in Visual C++ 2015, and the unit test library doesn't work there either (as I haven't leared how to demangle names on Windows, yet).

Note that Visual C++ doesn't supply the alternative operator tokens by default, so if you want to experiment with this library on Windows, you need to force-include <ciso646> (/FIciso646).