added channels module
added help info object to command configuration
added description field to parameter
added modules for commands (and packed modules), they are mapped by name
added post command execution interface
added support for optional parameters
added support for using guildchannel as parameter
added printing of modules to help command
added service beans to wrap over the operations on the repository
added synchronizing of channels/roles on startup (controlled by flag)
added builder annotations to model classes
added more model classes
