- &$addSession: whether to add session variable
- &$url: resulting URL to local resource
+StartProfileGetAvatar: When getting an avatar for a profile
+- $profile: profile
+- $size: size of the avatar
+- &$avatar: avatar
+
+EndProfileGetAvatar: After getting an avatar for a profile
+- $profile: profile
+- $size: size of the avatar
+- &$avatar: avatar
+
+StartRegisterSuccess: Before showing the registration success message
+- $action: the registration action
+
+StartRegisterSuccess: After showing the registration success message
+- $action: the registration action