Merge pull request #761 from seanpaultaylor/next

Fixed doxygen warnings on Game.
Merge pull request #762 from seanpaultaylor/next

Updated CHANGES.md for a few more features added.
Merge pull request #763 from seanpaultaylor/next

Fixed shutdown on Windows and added shutdownInternal on Platform.
Fix intermittent Android crash on startup. Rewind before iterating through properties.
Merge pull request #764 from kwhatmough/next

Fix intermittent Android crash on startup. Rewind before iterating throu...
Cleaned up ParticlesGame sample04