doc: updated credits and changelog.

doc/changelog.dox

@@ -438,6 +438,8 @@ See also:
 -   Fixed broken @ref Platform::EmscriptenApplication mouse event coordinates
     when `-s DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR=1` is enabled (see
     [mosra/magnum#408](https://github.com/mosra/magnum/issues/408))
+-   Fixed compilation of @ref Platform::EmscriptenApplication on recent
+    Emscripten versions (see [mosra/magnum#434](https://github.com/mosra/magnum/pull/434))
 -   Due to Windows- and macOS-specific issues in GLFW,
     @ref Platform::GlfwApplication::viewportEvent() and/or
     @ref Platform::GlfwApplication::drawEvent() could get fired already during

src/Magnum/Platform/EmscriptenApplication.cpp

@@ -3,7 +3,7 @@
 
     Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
               Vladimír Vondruš <mosra@centrum.cz>
-    Copyright © 2018, 2019 Jonathan Hale <squareys@googlemail.com>
+    Copyright © 2018, 2019, 2020 Jonathan Hale <squareys@googlemail.com>
 
     Permission is hereby granted, free of charge, to any person obtaining a
     copy of this software and associated documentation files (the "Software"),