Bug 17870 - Call to include file incorrectly moved into the footer

Bug 17870 - Call to include file incorrectly moved into the footer

This patch moves a line of template code from js_includes.inc back into
doc-head-close.inc where it belongs.

To test, apply the patch and view a page which uses a template that
depends on html_helpers.inc being processed. For example:

- The set library page
- The holds queue report
- The new patron form

The pages should work correctly.

Signed-off-by: Claire Gravely <claire_gravely@hotmail.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>