AbstractMailServerProtocolBean Equals still considering password field

`AbstractMailServerProtocolBean` needs to be refactored regarding lombox `Equals` functionality (seen in PR #45):

Although `AbstractMailServerProtocolBean` annotates
``` 
@XmlElement
@EqualsExclude
@HashCodeExclude
private String password;
``` 
the `Equals` call does not return `true` for the same content. Also `@EqualsAndHashCode.Exclude` did not yield true.