Fixed pagination for 6 pages. It showed 7 instead.

When num_pages was 6, it showed a 7 button. Which not exists. Fixed
this problem.
Updated changelog for pagination
Revert "Fixed pagination for 6 pages. It showed 7 instead."

This reverts commit 16c72123ec14b819a94c115c32a398130fe9da19.
Pagination fix
Pagination: fix for pages

Always show 7 buttons (numbers) (+ prev and next) when we have more
then 7 pages.
Updated comment + removed space
Updated changelog

New rules should be insert below.
Pagination: 2 little fixes when having 6 pages
Backend: fixed pagination (identical to frontend)
pagination simplified if structure
Merge