Update project ui-sortable to v0.13.1
Merge pull request #2379 from jsdelivrbot/ui-sortable/v0.13.1

Update project ui-sortable to v0.13.1
Update project skrollr to 0.6.28
Merge pull request #2381 from jsdelivrbot/skrollr/0.6.28

Update project skrollr to 0.6.28