Global filter is not applied when filter on column (filter-column extention)

[nicoden]

When filter with .search text box AND column filter, the result depend on the order we put text in search box.

Type data in column filter the in global search box is ok.

Type data in global search box then in column fllter: Only the column filter is applied

Step to reproduce in this fiddle:

1. Enter Alice in the global search box
   => Alice displayed, ok
2. Enter Bob in the Name column filter
   => Bob displayed, not ok, no results should appear in this case

I patched temporarly my code with this:

Pass an null currentTarget to the onSearch event handler in bootstrap-table-filter-control.js:onColumnSearch

this.onSearch({ currentTarget: null });

In the onSearch event handler, use the global search text box if currentTarget is null:

        var text = $.trim($(event.currentTarget || this.$toolbar.find('.search input')).val());

        // trim search input
        if (this.options.trimOnSearch && event.currentTarget && $(event.currentTarget).val() !== text) {

This is not a perfect solution because it break the trimOnSearch for column filter.

[UtechtDustin]

Duplicate #2776