moved generalized chat class into xotcl-core to make it usable for dotrn-chat and xowiki chat. this simplfies dependencies as well. since d…
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moved generalized chat class into xotcl-core to make it usable for dotrn-chat and xowiki chat. this simplfies dependencies as well. since dotlrn chat will only need a dependency to xotcl-core. changes to xowiki chat will follow.
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