Correctly match multiple class names

Assume that el.className === "foo bar"
Assume that your selector is "DIV.foo.bar"

(' ' + el.className + ' ').match(re) will only have one match - " foo " - because the "\\s" trailing character on "foo" prevents " bar " from being matched

EZ fix is just to make sure the trailing whitespace is not consumed by the regex

ng-sortable: add prefix to version constant

Reset state when component receives new props

ng-sortable: support configuration constant

Fixed small typo on documentation

Remove circular symlink.

Fix AngularJS typo

Use isolated scope with two-way binding in ng-sortable

clean watcher after element destroy