Log Message:
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2.0.2:
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General:
* Added SDL_GL_ResetAttributes() to reset OpenGL attributes to default values
* Added an API to load a database of Game Controller mappings from a file:    
    SDL_GameControllerAddMappingsFromFile
* Added game controller mappings for the PS4 and OUYA controllers
* Added SDL_GetDefaultAssertionHandler() and SDL_GetAssertionHandler()
* Added SDL_DetachThread()
* Added SDL_HasAVX() to determine if the CPU has AVX features
* Added SDL_vsscanf(), SDL_acos(), and SDL_asin() to the stdlib routines
* EGL can now create/manage OpenGL and OpenGL ES 1.x/2.x contexts, and share
  them using SDL_GL_SHARE_WITH_CURRENT_CONTEXT
* testgl2 does not need to link with libGL anymore
* Added testgles2 test program to demonstrate working with OpenGL ES 2.0
* Added controllermap test program to visually map a game controller
  
Windows:
* Support for OpenGL ES 2.x contexts using either WGL or EGL (natively via
  the driver or emulated through ANGLE)

Android:
* Joystick support (minimum SDK version required to build SDL is now 12, 
  the required runtime version remains at 10, but on such devices joystick 
  support won't be available).
* Hotplugging support for joysticks

Linux:
* Fixed fullscreen and focused behavior when receiving NotifyGrab events
* Added experimental Wayland and Mir support, disabled by default