add tim's BC message to changelog

Author: christopherthielen

CHANGELOG.md

@@ -38,7 +38,9 @@
 * **typescript:** Add typescript definitions for component builds ([521ceb3f](https://github.com/angular-ui/ui-router/commit/521ceb3fd7850646422f411921e21ce5e7d82e0f))
 * **uiSref:** extend syntax for ui-sref ([71cad3d6](https://github.com/angular-ui/ui-router/commit/71cad3d636508b5a9fe004775ad1f1adc0c80c3e))
 * **uiSrefActive:** 
-  * **BREAKING CHANGE** Also activate for child states. ([bf163ad6](https://github.com/angular-ui/ui-router/commit/bf163ad6ce176ce28792696c8302d7cdf5c05a01), closes [#818](https://github.com/angular-ui/ui-router/issues/818))
+  * Also activate for child states. ([bf163ad6](https://github.com/angular-ui/ui-router/commit/bf163ad6ce176ce28792696c8302d7cdf5c05a01), closes [#818](https://github.com/angular-ui/ui-router/issues/818))
+    * **BREAKING CHANGE** Since ui-sref-active now activates even when child states are active you may need to swap out your ui-sref-active with ui-sref-active-eq, thought typically we think devs want the auto inheritance.
+
   * uiSrefActiveEq: new directive with old ui-sref-active behavior
 * **$urlRouter:**
   * defer URL change interception ([c72d8ce1](https://github.com/angular-ui/ui-router/commit/c72d8ce11916d0ac22c81b409c9e61d7048554d7))