13a8623b59
Fixes https://github.com/spring-projects/spring-integration/issues/3027 This is a polishing for PR https://github.com/spring-projects/spring-integration/pull/3029 * Move `KeyDirectory` in to the `RotationPolicy` since it looks like fully coupled concept with that abstraction and the class name is so bad for the public API * Remove `AbstractStandardRotationPolicy` in favor of a `StandardRotationPolicy` extendability * Change `ftp.adoc` and `sftp.adoc` to reflect a new API reality * Mantion these changes in the `whats-new.adoc`