libepoxy 1.4

[Pierre Labastie]

New minor version:

Major changes for 1.4 are:

    Epoxy can now build with MSVC versions prior to 2013; we still recommend
using a recent, C99-compatible compiler, like MSVC 2015 [Chun-wei Fan]
    When used under X11, Epoxy now attempts to handle the cases where the GLX
extension is not built or not available [Yaron Cohen-Tal]
    GLX can now be enabled and disabled at configuration time; this allows
building Epoxy with GLX on macOS, and allows building Epoxy without GLX on
embedded platforms
    Epoxy now exposes API that lets dependent projects safely check if
platform API like GLX and EGL is available at run time
    EGL support has been improved on Windows, and made more resilient on
other platforms [Yaron Cohen-Tal, Adam Jackson]
    Epoxy supports building with the Meson build system, which has Ninja,
Visual Studio, and XCode backends
    Epoxy can generate its API reference using Doxygen (currently only
available on Meson builds)
    The GL registry has been updated with the latest version of the API
references provided by Khronos; Epoxy now supports the API introduced by
OpenGL 4.5

[bdubbs@…]

Fixed at revision 18274.