added ability to create/accept/reject suggestions them
made commands async, because a lot of operations behave like that
in case the database is needed in an async operation, this needs to be in a separate transactional service
fixed ordering of Long parameters (server > channel > message)
added initial emote handling (no adding of emotes yet)
fixed creation of AUserInAServer, in case the user did not exist yet, when loading
changed PostTargetService to return Futures instead of being a void, in order to be able to act on the message posted
set logging level to debug
fixed help for different commands (templates had wrong naming)
