message: Added previous & next method jsdoc info
  In PaneList class added previous & next method jsdoc info
diff: @@ -77,6 +77,11 @@ export abstract class PaneList {
  }
  }
  + /**
  + * Returns the pane previous to the 'pane' argument provided.
  + * @param {Pane} pane The reference pane.
  + * @returns {Pane}
  + */
  previous(pane: Pane): Pane {
  const firstPaneIndex = 0;
  const lastPaneIndex = this.size - 1;
  @@ -102,6 +107,11 @@ export abstract class PaneList {
  return previous;
  }
  + /**
  + * Returns the pane next after the 'pane' argument provided.
  + * @param {Pane} pane The reference pane.
  + * @returns {Pane}
  + */
  next(pane: Pane): Pane {
  const firstPaneIndex = 0;
  const lastPaneIndex = this.size - 1;
  