[cleanup] the revenge of Mr Proper
[evol] I18n: new helpers to setup gettext domains and deferred translations (and one to inject the correct domain into specific core classes in order to be able to use cyborg-local translations into them (currently only needed for DSL classes))
[evol] Mail: move it into the Postman module
[fix/evol] work on better Interface/Task/Conversation/… sync and bot stop action in order to avoid races and locks
[evol] cleanup and preliminary work on the Postman (and Needle-ization)