Made improvements to IPC files.
Converted tag.erl to handler format.
Server now runs with modified tag code.
Changed user/player info manager to use handler format.
Corrected pattern-matching when requesting a tag.
Changed handler status constants to atoms.
Renamed users to players for consistency.
Renamed module tag to tag_allocator
Made spawning a little nicer.
Converted map manager to handler format.
Converted info manager to handler format.
Converted player controller to handler format.
Made the -export's more consistent.
Made initialization easier for handlers.
Added tag assignment manager, currently unused.
Created tag assignment manager.
tag allocation manager is now spawned by main
Added command executor separate from info manager.
Removed outdated/unnecessary comments.

In particular, the ones that said who makes requests of whom.
Renamed send_notification to notify