docs(test_lib/test_injector): fix invalid jsdoc type

chore(doc-gen): capture docs for modules from comments

Closes #1258

docs(*): add module description jsdoc tags
docs(*): add @public tag to public modules
chore(doc-gen): fix overview-dump template
The template was referencing an invalid property
chore(doc-gen): use `@exportedAs` and `@public` rather than `@publicModule`

This commit refactors how we describe components that are re-exported in another
module. For example the "public" modules like `angular/angular` and `angular/annotations`
are public but they only re-export components from "private" modules.

Previously, you must apply the `@publicModule` tag to a component that was to be
re-exported. Applying this tag caused the destination module to become public.

Now, you specify that a module is public by applying the `@public` tag and then
you can "re-export" components to other modules by applying the `@exportedAs`
giving the name of the module from which the component will be re-exported.
tag. This tag can be used multiple times on a single component, allowing the
component to be exported on multiple modules.

docs(*): rename `@publicModule` to `@exportedAs`

The `@publicModule` dgeni tag has been replaced by the `@exportedAs`
dgeni tag on components that are to be re-exported on another module.

Closes #1290

modules/angular2/src/directives/for.js

@@ -34,7 +34,7 @@ import {ListWrapper} from 'angular2/src/facade/collection';
  * - `<li template="for #item of items; #i=index">...</li>`
  * - `<template [for]="#item" [of]="items" #i="index"><li>...</li></template>`
  *
- * @publicModule angular2/directives
+ * @exportedAs angular2/directives
  */
 @Viewport({
   selector: '[for][of]',

modules/angular2/src/directives/if.js

@@ -22,7 +22,7 @@ import {isBlank} from 'angular2/src/facade/lang';
  * - `<div template="if condition">...</div>`
  * - `<template [if]="condition"><div>...</div></template>`
  *
- * @publicModule angular2/directives
+ * @exportedAs angular2/directives
  */
 @Viewport({
   selector: '[if]',

modules/angular2/src/directives/non_bindable.js

@@ -13,7 +13,7 @@ import {Decorator} from 'angular2/src/core/annotations/annotations';
  * <div non-bindable>Ignored: {{1 + 2}}</div> // output "Ignored: {{1 + 2}}"
  * ```
  *
- * @publicModule angular2/directives
+ * @exportedAs angular2/directives
  */
 @Decorator({
   selector: '[non-bindable]',

modules/angular2/src/directives/switch.js

@@ -29,7 +29,7 @@ import {Parent} from 'angular2/src/core/annotations/visibility';
  * </ANY>
  * ```
  *
- * @publicModule angular2/directives
+ * @exportedAs angular2/directives
  */
 @Decorator({
   selector: '[switch]',
@@ -142,7 +142,7 @@ export class Switch {
  * <template [switch-when]="'stringValue'">...</template>
  * ```
  *
- * @publicModule angular2/directives
+ * @exportedAs angular2/directives
  */
 @Viewport({
   selector: '[switch-when]',
@@ -179,10 +179,10 @@ export class SwitchWhen {
  * ```
  * <template [switch-default]>...</template>
  *
- * @publicModule angular2/directives
+ * @exportedAs angular2/directives
  * ```
  *
- * @publicModule angular2/directives
+ * @exportedAs angular2/directives
  */
 @Viewport({
   selector: '[switch-default]'