* toh-6: trim spaces from cache file to simplify diff
* toh-6: copy latest over cache before editing latest
* docs(toh-6): post-RC5 Dart resync and TS fixes
Contributes to #2077.
TS-side changes include:
- Merged three versions of `app/app.module{,1,2}.ts` into a single file
and used docregions instead.
- Misnamed files:
- `rxjs-operators.ts` -> `rxjs-extensions.ts`
- `hero-search.service.html` -> `hero-search.component.html`
- Fixed BAD FILENAME error.
Lint reports no errors and toh-6 e2e tests pass.
* docs(quickstart): post-RC5 Dart resync
- Resync Dart QS prose with TS, post RC5.
- Added to-be-shared Jade `var` definitions to `_util-fns.jade`.
- Delete cached QS jade file.
- Eliminate the stub file `styles.1.css` in favor of a `docregion` in
the main `styles.css`.
This commit requires a `gulp add-example-boilerplate` after pulling it in.
Contributes to #2077.
* post-review edits
Patrice Chalin