Added math.clamp().

[NEW] Added math.clamp().
Fixed the parameters of love.graphics.newShader().

[FIX] Fixed the parameters of love.graphics.newShader().
Added love.graphics.blur().

[NEW] Added love.graphics.blur().
Fixed the compatibility code for love 0.8.0.

[FIX] Fixed the compatibility code for love 0.8.0.
Added Font.getTextRectangle().

[NEW] Added Font.getTextRectangle().
[FIX] Fixed the metatable of GamePlayer.