Merging r6128 through r6139 from trunk to ogl-es branch.

Note: I could not merge 2 OSX project files as I'm not sure how to correctly resolve their conflicts.
Maybe old version for those files are still OK, as ogl-es branch got updated once before (leaving trunk behind).
In case it causes problems I hope someone can send another patch for those 2 files:
source/Irrlicht/Irrlicht.xcodeproj/xcshareddata/xcschemes
source/Irrlicht/Irrlicht.xcodeproj/project.pbxproj


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/branches/ogl-es@6140 dfc29bdd-3216-0410-991c-e03cc46cb475

changes.txt

@@ -9,6 +9,10 @@ Changes in ogl-es (not yet released - will be merged with trunk at some point)
 
 --------------------------
 Changes in 1.9 (not yet released)
+- No longer try to set WM_QUIT when using an external Window on Win32. 
+  Thx @Marko Mahnic for the patch (https://sourceforge.net/p/irrlicht/bugs/449)
+- ply meshloader now also supports textures with uv-labels named texture_u/texture_v. 
+  Thx @acy for bugreport and test-model (http://irrlicht.sourceforge.net/forum/viewtopic.php?f=4&t=52646)
 - Fix potential reading/writing 1 byte behind it's own buffer in PLY loader.
   Thanks @wolfgang for report and patch (http://irrlicht.sourceforge.net/forum/viewtopic.php?f=7&t=52627&p=305573#p305573)
 - ICursorControl::isVisible is now always returning the flag set in setVisible.