chore(changelog): add lifecycle breaking changes

CHANGELOG.md

@@ -63,6 +63,46 @@ cause Http's Observable to error.
 
 * A few private helpers (e.g., platformCommon or applicationCommon) were removed or replaced with other helpers. Look at PLATFORM_COMMON_PROVIDERS, APPLICATION_COMMON_PROVIDERS, BROWSER_PROVIDERS, BROWSER_APP_PROVIDERS to see if they export the providers you need.
 
+* Previously, components that would implement lifecycle interfaces would include methods
+like "onChanges" or "afterViewInit." Given that components were at risk of using such
+names without realizing that Angular would call the methods at different points of
+the component lifecycle. This change adds an "ng" prefix to all lifecycle hook methods,
+far reducing the risk of an accidental name collision.
+
+  To fix, just rename these methods:
+  * onInit
+  * onDestroy
+  * doCheck
+  * onChanges
+  * afterContentInit
+  * afterContentChecked
+  * afterViewInit
+  * afterViewChecked
+  * _Router Hooks_
+  * onActivate
+  * onReuse
+  * onDeactivate
+  * canReuse
+  * canDeactivate
+
+  To:
+  * ngOnInit,
+  * ngOnDestroy,
+  * ngDoCheck,
+  * ngOnChanges,
+  * ngAfterContentInit,
+  * ngAfterContentChecked,
+  * ngAfterViewInit,
+  * ngAfterViewChecked
+  * _Router Hooks_
+  * routerOnActivate
+  * routerOnReuse
+  * routerOnDeactivate
+  * routerCanReuse
+  * routerCanDeactivate
+
+  The names of lifecycle interfaces and enums have not changed, though interfaces
+  have been updated to reflect the new method names.
 
 <a name="2.0.0-alpha.46"></a>
 # 2.0.0-alpha.46 (2015-11-11)