Originally the dashboard TS expression ``heroes.slice(1, 5))` had been
written as:
> _heroService.getHeroes().getRange(1, 5)
which is brittle; it fails if there are not enough heroes. Slice
doesn't fail; an equivalent express
ion in Dart is
> _heroService.getHeroes().skip(1).take(4)
This is now used.
Other changes:
- Fix in css (missed TS-side update).
- Ran `dartfmt` on `heroes_component.dart`.
Also update dart_to_js_script_rewriter dependency to ^1.0.1,
and change most angular2.dart imports to be core.dart instead.
The pipes example broke without the angular2.dart import, so I let it be.
The server-communication sample has never worked for me,
so I changed it but might have broken it further.
closes#1007
Patrice Chalin
Kathy Walrath
Filipe Silva
Luis Vargas