sortupdate trigger fix (trigger on append to list)
Support vertical lists of variable height by defining a dead zone when hovering over larger items.
regex fix

https://github.com/farhadi/html5sortable/commit/8a602fe453469620dab6fe5a209f7212de9817c5
Merge branch 'master' of https://github.com/vonq/html5sortable
Linting