NgController leaks outside the current element on which it is declared

[mhevery]

http://stackoverflow.com/questions/20985108/puzzled-by-css-selector-to-trigger-controller

[mhevery]

Working as intended the example is wrong as it uses NgDirective rather than NgController.

But a better fix would be to remove publishAs from NgDirective as it makes no sense.

[chrisbu]

Links with #532 - the removal of publishAs has broken the current Dart Editor welcome page angular-todo app.

(According to semver.org, should this have been a major point change - breaking change rather than backwards compatible patch?).