[GitHub] wicket issue #276: WICKET-6550 : Unify all metadata capable objects.

[martin-g]

Github user martin-g commented on the issue:

    https://github.com/apache/wicket/pull/276
  
    Cool!
    
    Please just add Javadoc about the `tparam`s of IMetadataContext!
    LGTM!


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