Update excel-bootstrap-table-filter.ts

[sibprojects]

Add updating functional, use like this: $('#table').excelTableFilter({ reload: true });

[andebor]

Your selector didn't work for me as it effectively removed every column heading. I got it working like this:

        if (typeof options.reload !== 'undefined'){
            $(this).find('th').each(function(key,val){
                $(this).find('.dropdown-filter-dropdown').remove();
                $(this).html($(this).text());
            });
        }

[chestercharles]

This pull request still only has changes to the Typescript file - the js needs to be recompiled as well.