CPython 3.4.2
white spacing
indentation
test changing
build changes
C++11 noexcept and other exception stuff
don't upcast too early
header refactoring
no stddef, stdexcept
don't export internal symbols
extra warnings
avoid accidental gaps in TypeId enum
rationalize extern "C" usage
fail when int is out of supported range
flag list as dirty on item assignment
marshal header includes root object key explicitly