2.0:
----
 * Added missing language constant definitions

1.9:
----
 * Revert 1.8 since rss 1.0 is still valid

1.8:
----
 * Preparations for Styx 3.3.0 - remove outdated feed hooks

1.7:
----
 * moved from core into additional plugins

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Version 1.4 (brockhaus):

    * Changed default cc version to 3.0, respecting old configuration
      while updating.
    * BY only version is only valid since 3.0. 2.5 doesn't support this.
    * Japanese users get a wrong link to the creative common license
    * Mouseover image title supports Mozilla, too (title attribute)

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Version 1.3 (Evan Nemerson):