*`Text.setRTL` is a new method that allows you to set a Text Game Object as being rendered from right-to-left, instead of the default left to right (thanks @rexrainbow)
*`FX.Circle.backgroundAlpha` is a new property that allows you to set the amount of the alpha of the background color in the Circle FX (thanks @rexrainbow)
*`Particle.scaleY` would always be set to the `scaleX` value, even if given a different one within the config. It will now use its own value correctly.
*`FX.Blur` didn't set the `quality` parameter to its property, meaning it wasn't applied in the shader, causing it to always use a Low Blur quality (unless modified post-creation).
* The `BlurFXPipeline` didn't bind the quality of shader specified in the controller, meaning it always used the Low Blur shader, regardless of what the FX controller asked for.
* The `FXBlurLow` fragment shader didn't have the `offset` uniform. This is now passed in and applued to the resulting blur, preventing it from creating 45 degree artifacts (thanks Wayfinder)