Update bootstrap-table.js

add cellStyles field

src/bootstrap-table.js

@@ -1003,7 +1003,7 @@
                 }
 
                 cellStyle = calculateObjectValue(that.header,
-                    that.header.cellStyles[j], [value, item, i], cellStyle);
+                    that.header.cellStyles[j], [value, field,item, i], cellStyle);
                 if (cellStyle.classes) {
                     class_ = sprintf(' class="%s"', cellStyle.classes);
                 }