Static Qt 5.6.3 build for Windows XP without SSE2

This repository contains Qt 5.6.3 sources with a script meant to build a static
version of the library with MSVC static runtime, as well as additional fixes
meant to make the build runnable on Windows XP with a processor without any
additional instruction set extensions.

Keep in mind that this does not aim to be a complete build of the library, as
only the qtbase, qtmultimedia, qttools, qttranslations and
qtwebsockets modules are being built.

A static build of OpenSSL is
included in the library. OpenSSL code will be included in the resulting
executables built with this Qt build if you use the network module in your
application.