Automatically build and deploy Windows binaries with Travis, the same way it's done for Liblouis

[bertfrees]

The build can be based on Dockerfile.mingw. But instead of building libxml2 and liblouis on the fly, pre-built versions of libxml2 and liblouis can also be used. I use this approach in the liblouisutdml-nar project.

For more inspiration see the Liblouis Travis scripts:

• .travis/before_install/mingw.sh
• .travis/script/mingw.sh
• .travis/after_success/mingw.sh

[egli]

Is this issue referring to windows binaries for each commit or just each release? If it is about each commit then I suppose we could copy and adapt the respective action from the liblouis repo.

But TBH there is so little traffic in this repo that it seems hardly worth the effort. There really isn't that much of a difference between releases and commits.

[bertfrees]

I don't really remember why I created this issue. It probably is about deploying for every commit, since that is what we for Liblouis.