Merging r5975 through r6036 from trunk to ogl-es branch.

GLES drivers adapted, but only did make compile-tests.


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/branches/ogl-es@6038 dfc29bdd-3216-0410-991c-e03cc46cb475

media/cubemap_license.txt

@@ -0,0 +1,18 @@
+License for the cubemap_*.jpg files in this folder.
+
+Author
+======
+
+This is the work of Emil Persson, aka Humus.
+http://www.humus.name
+
+License
+=======
+
+This work is licensed under a Creative Commons Attribution 3.0 Unported License.
+http://creativecommons.org/licenses/by/3.0/
+
+
+Changes
+=======
+For the Irrlicht engine we downscaled the images to 512x512. Get the full 2048x2048 resolution at http://www.humus.name