Red Star v1.2

Changes:
+ Red Star has been rewritten to be able to run on multiple servers simultaneously.
+ Added Channel Manager: Channel Manager handles channel types per-server. Use get_channel and set_channel to set channels as a type.
+ purge can now match by author with author:
+ Add addholiday command: Allows MotD holidays to be added.
+ Added leavevoice command to tell the bot to leave a voice channel.
+ Bot now leaves a voice channel if it is empty for a given time.
~ set_config now checks type.
~ Added <server> tag for get_config and set_config, substitutes for server ID.
~ volume now returns feedback when changing volume.
~ testmotd now checks that the inputs are valid dates.
~ Logger now logs the attachments of deleted messages.
~ Miscellaneous bug fixes.