Add support for SES API 2010-12-01 methods: SetIdentityFeedbackForwardingEnabled and SetIdentityNotificationTopic #2128
added test cases for #2128
Merge pull request #2130 from nhumphreys/ses-notification-support

Add SetIdentityFeedbackForwardingEnabled and SetIdentityNotificationTopic for SES. Fixes #2130, #2128.