- Add missing '@Override' annotations
- Add missing '@Override' annotations to implementations of interface methods
- Add missing '@Deprecated' annotations

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1509091 13f79535-47bb-0310-9956-ffa450edef68
Remove unused imports.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1509093 13f79535-47bb-0310-9956-ffa450edef68