message: scrollbar and mouseWheel missing options
  added some missing options.
diff: @@ -25,6 +25,7 @@ export interface SlideOption {
  export interface ScrollBarOption {
  fade: boolean;
  + interactive: boolean;
  }
  export interface PullDownOption {
  @@ -36,6 +37,11 @@ export interface PullUpOption {
  threshold: number;
  }
  +export interface MouseWheelOption {
  + speed: number,
  + invert: boolean
  +}
  +
  export interface BounceObjectOption {
  top?: boolean;
  bottom?: boolean;
  @@ -101,6 +107,7 @@ export interface BsOption {
  * for scrollbar
  * scrollbar: {
  * fade: true
  + * interactive: true
  * }
  */
  scrollbar: Partial<ScrollBarOption> | boolean;
  @@ -119,6 +126,14 @@ export interface BsOption {
  * }
  */
  pullUpLoad: Partial<PullUpOption> | boolean;
  + /**
  + * for mouseWheel
  + * mouseWheel: {
  + * fade: true,
  + * interactive: false;
  + * }
  + */
  + mouseWheel: Partial<MouseWheelOption> | boolean;
  }
  export interface Position {
  