Fix copyright.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/vfs/trunk@1559890 13f79535-47bb-0310-9956-ffa450edef68
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/commons/proper/vfs/trunk@1559914 13f79535-47bb-0310-9956-ffa450edef68
Remove unnecessary parentheses

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/vfs/trunk@1559915 13f79535-47bb-0310-9956-ffa450edef68