core (xmpp): fixed workflow with post_xml_treatments in sendMessage: post_xml_treatments was incorrectly added to workflow using chainDeferred (which only add the callback, so post_xml_treatments own callbacks were not waited). As a result, plugins callback could not be waited as expected before a message was sent. This patch fixes it by not using chainDeferred anymore.

[[Catégorie:Salut à Toi]]
[[Catégorie:documentation développeur]]

= Overview =
This is an autogenerated doc for SàT bridge's API
= Signals =
##SIGNALS_PART##
= Methods =
##METHODS_PART##
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##TIMESTAMP##