Change `ngFor=“#…”` to `ngFor=“let…` in code. All are .dart files
except for `app_component.html` which also has changes for:
- `<inpuf var-foo…`> to `<input ref-foo…>`
- `#docregion` tag name updates from var-foo to ref-foo.
- Other misc updates to minimize diffs with TS version of file,
whitespace differences were ignored.
+ Minor update to sync up Dart prose with TS prose.
+ Used
https://github.com/angular/angular/wiki/Angular-2-Dart-Transformer#resol
ved_identifiers to solve
https://github.com/angular/angular.io/issues/1033
Guide/pipes not updated as it will be rolled back to
beta.15 in PR #1220.
