avoid duplicate ids in ng-repeated span (Chap. 6-7)

Oups, sorry, missed these before; this time, making the fix in all
remaining chapters (lib/component/search_recipe_component.html).
Drop cssUrl parameter to NgComponent since .css is empty (Chap. 6-7)

The component folder holds the files for the two components
search_recipe and view_recipe. Given that one of these has an empty
.css file, it seems reasonable to drop it, reducing the clutter and
driving home the fact that the `cssUrl` parameter is optional.
Merge pull request #52 from chalin/patch-6-drop-empty-component-css

Drop cssUrl parameter to NgComponent since .css is empty (Chap. 6-7)
Merge pull request #50 from chalin/patch-5-remove-id-from-repeated-span

avoid duplicate ids in ng-repeated span (Chap. 6-7)
fix ch07 use of shadow_dom package

See https://github.com/angular/angular.dart.tutorial/pull/28 for details.

Review URL: https://codereview.appspot.com/57990043
fix(static-injector): Update to the latest StaticParser
Make all chapters' samples more consistent and up to date

Review URL: https://codereview.appspot.com/58320043
Stripped down ch07 imports, @MirrorsUsed

I'm going to commit, since this removes unnecessary code (yay!).

Review URL: https://codereview.appspot.com/58460043
Update @MirrorsUsed and run instructions
Better error handling for view recipe component when recipe is null (Chap. 6)

When there is no recipe to show (recipe is null):
- Don’t display the edit button.
- Inform user (via a message).
Also removing unused div id=“recipe-details”.
Merge pull request #1 from angular/master

merge in upstream
add necessary MirrorsUsed to the tutorial files
Merge pull request #61 from sethladd/add-mirrors-used

Add mirrors used
remove the top level pubspec. each subdir has its own pubspec
shadow_dom is now a dependency
add shadow_dom to the list of boilerplate for any angulardart app
Merge pull request #62 from sethladd/add-shadow-dom

Add shadow dom
shadow_dom is already a dependency of angulardart
use min instead of debug for shadow_dom
Merge pull request #63 from sethladd/debug-to-min

use min instead of debug for shadow_dom