Merge pull request #4563 from MatejQ/doc-cellclass

docs: Fix incorrect parameters of cellClass and headerCellClass

Author: JLLeitschuh

src/js/core/factories/GridColumn.js

@@ -561,7 +561,7 @@ angular.module('ui.grid')
      * @name cellClass
      * @propertyOf ui.grid.class:GridOptions.columnDef
      * @description cellClass can be a string specifying the class to append to a cell
-     * or it can be a function(row,rowRenderIndex, col, colRenderIndex) that returns a class name
+     * or it can be a function(grid, row, col, rowRenderIndex, colRenderIndex) that returns a class name
      *
      */
     self.cellClass = colDef.cellClass;
@@ -571,7 +571,7 @@ angular.module('ui.grid')
      * @name headerCellClass
      * @propertyOf ui.grid.class:GridOptions.columnDef
      * @description headerCellClass can be a string specifying the class to append to a cell
-     * or it can be a function(row,rowRenderIndex, col, colRenderIndex) that returns a class name
+     * or it can be a function(grid, row, col, rowRenderIndex, colRenderIndex) that returns a class name
      *
      */
     self.headerCellClass = colDef.headerCellClass;