PagerAwareViewData shows to many pages

[11mb]

When using the pager filter I noticed I get to many pages: 20 instead of only 6 available. When I look into the code the last page is being calculated with this formula:

$end = $begin + $this->maxPages - 2;

This formula can never be correct as the maxPages variable has little to do with the $end when $this->numPages is lower then maxPages.

By viewing the code it seems that the author also realized this, since a whole block of code that deals with this problem is written but commented out: https://github.com/ongr-io/FilterManagerBundle/blob/master/Filter/ViewData/PagerAwareViewData.php#L187

[JanTvrdik]

#245