Release 0.2.0

Changed the API, "configs" are now just "events" and configuration of serverName, ports, ... will now be handled for each instance. Please refer to the 'api-spec.yaml' for a full description of the API.
This change allows the user to have multiple servers with the same event.
Also fixed a few bugs and possible bugs and reduced the amount of MongoDB collections.
Please drop the "accservermanager" database if youre updating from 0.1.x (make sure to save your configs somewhere else or you will lose them).