Convert conditional Windows text API calls to explicit ANSI/MBCS.
Rationalize and update Visual Studio projects, add NuGet packaging.
Merge branch 'zeromq/master'
Rebuild generated project files and package to include merged changes.
Update packaging metadata.
Conditionally define fallback for ANSI Windows API call.
Update makefile.am
Merge pull request #432 from evoskuil/master

Rationalize and update VS projects and create NuGet packaging.