Updating drupal core to version 7.64
Updated the views module to version 3.21 (security update)
Fixed quiz/h5p bug when assigning max score of 0 to h5p questions
Updated wysiwyg module to version 2.5 to support newer version of the ckeditor
Updated ckeditor to version 4.9.2
Implemented additional logic for the "Clear selection when exposed filters change" setting to make it work better, added suitable description on the checkbox.
Added extra batch processing safeguards so batch will always end.
Resolved issue #3038648: Memory Error for large views with exposed filters.