fix for refnanny C code in dict iteration: generate all GOTREFs before all coercions before all assignments to properly handle error cases

work around C compiler warnings about unused utility functions by registering the signature with the smallest dependency last

Fixes setup filename in Demos/Makefile.

Fix "PyErr_Format + PY_FORMAT_SSIZE_T likely broken in Win64"

Add '/openmp' flag when compiling Cpp code with msvc compilers

refactoring and rewrite of optional kw arguments parsing helper function to support Unicode keyword arguments in Py2 (CPython supports them in Py2.6+)

Fix parallel/prange test failures on Windows

move utility code inclusion from Name/AttributeNodes to the latest possible step in the pipeline (after removing it from declaration analysis)