message: Replace SDL typedef before NAS2D update
diff: @@ -27,8 +27,8 @@ public:
  ProgressBar(size_t end);
  ~ProgressBar();
  - void setColor(Uint8 _r, Uint8 _g, Uint8 _b) { setColor(_r, _g, _b,255); }
  - void setColor(Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a) { mColorR = _r; mColorG = _g; mColorB = _b; mColorAlpha = _a; }
  + void setColor(unsigned char _r, unsigned char _g, unsigned char _b) { setColor(_r, _g, _b,255); }
  + void setColor(unsigned char _r, unsigned char _g, unsigned char _b, unsigned char _a) { mColorR = _r; mColorG = _g; mColorB = _b; mColorAlpha = _a; }
  void image(const std::string& _path) { image(_path, ImageMode::Repeating); }
  void image(const std::string& _path, ImageMode _m);
  bool hasImage() const;
  @@ -48,10 +48,10 @@ private:
  void draw();
  private:
  - Uint8 mColorR;
  - Uint8 mColorG;
  - Uint8 mColorB;
  - Uint8 mColorAlpha;
  + unsigned char mColorR;
  + unsigned char mColorG;
  + unsigned char mColorB;
  + unsigned char mColorAlpha;
  Image mImage;
  ImageMode mImageMode;
  