docs: release notes for the v7.2.4 release

Author: matsko

CHANGELOG.md

@@ -1,3 +1,19 @@
+<a name="7.2.4"></a>
+## [7.2.4](https://github.com/angular/angular/compare/7.2.3...7.2.4) (2019-02-06)
+
+
+### Bug Fixes
+
+* **bazel:** Bazel builder resolves with require.resolve() ([#28478](https://github.com/angular/angular/issues/28478)) ([d85d396](https://github.com/angular/angular/commit/d85d396))
+* **bazel:** fix integration test for bazel-schematics ([#28460](https://github.com/angular/angular/issues/28460)) ([449da8c](https://github.com/angular/angular/commit/449da8c))
+
+
+### Performance Improvements
+
+* pngcrush all pngs ([#28479](https://github.com/angular/angular/issues/28479)) ([1a25144](https://github.com/angular/angular/commit/1a25144)), closes [#18243](https://github.com/angular/angular/issues/18243)
+
+
+
 <a name="8.0.0-beta.2"></a>
 # [8.0.0-beta.2](https://github.com/angular/angular/compare/8.0.0-beta.1...8.0.0-beta.2) (2019-01-30)