- moved common namespaces to core.constants
- removed useless dependencies and recommendations
- removed all bride methods as they where there only for testing purpose
- don't use a plugin dict to store MAM clients, put them in profiles' clients instead
- removed message trigger in favor of an observer which is triggered only when specific queryid is used
- new getArchives method which grab all result and return them all at once
- you can already test it with d-feet but it will bug unless you apply the changeset 60dfa2f5d61f which is waiting in the branch "frontends_multi_profiles" (actually just one "assert" to comment in plugin_xep_0085.py)