Fixed the bottom left rendered image

|SOURCE|
[Common/Game]
* Moved setting the GL attributes to after SDL is initialised
[Common/Renderer]
* Switched the Y1 and Y2 in GBufferEnd for the last rectangle to go from the
  bottom to the top instead of top to bottom (reversing the image)
* Removed the calls to glFramebufferParameteri to set the width and height as
  they generated errors when used