Reverted wcscpy_s to wcscpy for codeblocks support.
Code::Blocks has standardized on forward slashes and will revert everything to that when the project file has changed.  So updated the the empty project template to match.
Added MinGW libz-1.dll from libz-1.2.7-1-mingw32-dll-1.tar.lzma.
Updated to recent versions.