chore: linting errors

Author: crisbeto

src/cdk/overlay/backdrop.ts

@@ -22,6 +22,7 @@ import {Subject} from 'rxjs/Subject';
  * @docs-private
  */
 @Component({
+  moduleId: module.id,
   template: '',
   host: {
     'class': 'cdk-overlay-backdrop',
@@ -38,6 +39,7 @@ import {Subject} from 'rxjs/Subject';
   ],
   changeDetection: ChangeDetectionStrategy.OnPush,
   encapsulation: ViewEncapsulation.None,
+  preserveWhitespaces: false,
 })
 export class MdBackdrop implements OnDestroy {
   _animationState = 'visible';

src/cdk/overlay/tsconfig-build.json

@@ -1,7 +1,8 @@
 {
   "extends": "../tsconfig-build",
   "files": [
-    "public-api.ts"
+    "public-api.ts",
+    "../typings.d.ts"
   ],
   "angularCompilerOptions": {
     "annotateForClosureCompiler": true,