Bug 26162: Wait for the table to be refreshed

Bug 26162: Wait for the table to be refreshed

The previous patch did not work as expected. We still got a
StaleElementReference exception.
But this time on
10:43:47 selenium_1   | Caused by: org.openqa.selenium.NoSuchElementException: Unable to locate element: {"method":"xpath","selector":"//*[@id=\"branchname\"]"}
Because we found the one that existed on the page, not the one sent back
in AJAX.

The idea of this patch is to search for the "Showing 1 to X of Y entries" info and wait for X == Y

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>