Consume pre-built examples from material2 repo (#160)

* Consume pre-built examples from material2 repo

This PR:
* Deletes src/app/examples
* Changes imports to use `@angular/material-examples/`
* Updates the `fetch-assets.sh` script to `npm install` the
material-examples package from material2-docs-content.

Author: jelbourn

.gitignore

@@ -5,6 +5,7 @@
 /tmp
 /src/assets/documents
 /src/assets/examples
+/src/assets/plunker/examples
 
 # dependencies
 /node_modules

package.json

@@ -25,7 +25,7 @@
     "@angular/material": "^2.0.0-beta.6",
     "@angular/platform-browser": "^4.0.0",
     "@angular/platform-browser-dynamic": "^4.0.0",
-    "@angular/router": "~4.0.0",
+    "@angular/router": "^4.0.0",
     "core-js": "^2.4.1",
     "rxjs": "^5.1.0",
     "zone.js": "^0.8.4"

src/app/app-module.ts

@@ -5,14 +5,15 @@ import {Location, LocationStrategy, PathLocationStrategy} from '@angular/common'
 import {FormsModule} from '@angular/forms';
 import {HttpModule} from '@angular/http';
 import {MaterialModule, MdNativeDateModule} from '@angular/material';
+import {ExampleModule} from '@angular/material-examples';
+
 import {MaterialDocsApp} from './material-docs-app';
 import {Homepage} from './pages/homepage/homepage';
 import {routing} from './routes';
 import {ComponentList} from './pages/component-list/component-list';
 import {ComponentViewer} from './pages/component-viewer/component-viewer';
 import {GuideList} from './pages/guide-list';
 import {GuideViewer} from './pages/guide-viewer';
-import {ExampleModule} from './examples/example-module';
 import {SharedModule} from './shared/shared-module';
 import {ComponentCategoryList} from './pages/component-category-list/component-category-list';
 import {ComponentSidenav} from './pages/component-sidenav/component-sidenav';