Prep for angular_components v0.9.0-alpha+15 release

Update CHANGELOG.
Bump all dependencies to versions without `retype()`.

PiperOrigin-RevId: 200763594

Author: nshahan

CHANGELOG.md

@@ -1,3 +1,40 @@
+## 0.9.0-alpha+15
+
+> NOTE: This code is considered production quality, but depends on angular:
+> 5.0.0-alpha+15. The alpha tag represents the evolving nature of the
+> AngularDart API, not code quality (5.0.0-alpha+15 is used in production Google
+> apps).
+
+ * Update dependencies for compatibility with Dart SDK v2.0.0-dev.62.0.
+ * Material Button: Remove styles for vertically aligned icon with text buttons.
+ * Material Checkbox: Add `material-checkbox-color` mixin and deprecate
+   `material-checkbox-theme`.
+ * Material Datepicker: Use updated class names for `ShowHideDirective`.
+ * Material Expansion Panel: Add a mixin to show header actions on the bottom
+   instead of on the left.
+ * Material Popup: Automatically restore focus on the popup source element when
+   user tabs out.
+ * Material Progress: Add height with rounded possibility for material progress
+   bar.
+ * Material Select:
+   * Update to `activedescendant` ARIA pattern for a11y.
+   * Ensure button text displays correctly when there the error message shows
+     below it.
+ * Material Slider:
+   * Add disabled property.
+   * Update size of click target.
+ * Material Radio:
+   * Add `role` attribute.
+   * Add `material-radio-color` mixin and deprecate `material-radio-theme`.
+ * Add DI modules to Laminate Overlay & Popup components.
+ * Update to `SelectionModel.single()`, `SelectionModel.multi()` etc. instead of
+   deprecated `SelectionModel.withList()`.
+ * Remove explicit `Visibility.local` from Angular components and directives, as
+   this is the default now.
+ * Remove legacy CSS class names used by `ShowHideDirective` that conflict with
+   Angular JS apps.
+ * Style updates for new additions to Effective Dart.
+
 ## 0.9.0-alpha+14
 
 > NOTE: This code is considered production quality, but depends on angular:
@@ -16,7 +53,7 @@
    * Fix focus bug when clicking on a different focusable element.
  * Add new CSS class names used by `ShowHideDirective` to avoid conflicts with
    Angular JS apps.
- * Only focus when `_autoFocus` is `true` when using `AutoFocusDirective`.
+ * Only focus when `autoFocus` is `true` when using `AutoFocusDirective`.
  * Update various components to use finals for `Intl.message`s to improve
    performance.
  * Update `PopupHierarchy` to better handle cases with multiple modals.

pubspec.yaml

@@ -1,27 +1,27 @@
 name: angular_components
-version: 0.9.0-alpha+14
+version: 0.9.0-alpha+15
 description: >
   The official Material Design components for AngularDart. Used at Google
   in production apps.
 homepage: https://webdev.dartlang.org/components
 author: Dart Team <[email protected]>
 environment:
-  sdk: '>=2.0.0-dev.56.0 <2.0.0'
+  sdk: '>=2.0.0-dev.60.0 <2.0.0'
 dependencies:
-  angular: 5.0.0-alpha+14
-  angular_forms: 2.0.0-alpha+6
+  angular: 5.0.0-alpha+15
+  angular_forms: 2.0.0-alpha+7
   async: ^2.0.6
   build: '>=0.11.1 <0.13.0'
   build_config: ^0.2.6
   built_collection: '>=1.6.0 <4.0.0'
-  collection: ^1.14.0
+  collection: ^1.14.10
   fixnum: ^0.10.5
   intl: '>=0.14.0 <0.16.0'
   js: ^0.6.1
   logging: ^0.11.2
   meta: ^1.0.4
-  observable: '>=0.17.0+1 <0.23.0'
+  observable: ^0.22.1+3
   protobuf: ^0.8.0
   perf_api: ^0.1.0
   quiver: '>=0.24.0 <0.30.0'
-  sass_builder: ^2.0.1
+  sass_builder: ^2.0.2