changed command context to be a member instead of user, commands are only supported within guilds
added custom exception templating for the error message
added error message in case the parameters for a command were too little
added support for templates on command help descriptions
added post execution to be executed to print exception messages
refactored command handling to be able to support exceptions
added user and userInServer management
replaced HashMaps for templates with concrete models, so the interface is easier known
added rendering method for objects directly
added default parameters available for commands
split up service beans for server/channel into management and service bean
added server reference in AChannel
refactored join/leave listener
changed ping command to use templates
added userjoin/userleave event
added guild to command context
refactored post target service
added logging output to initial loading
added server_id to postTarget
added leave log postTarget
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
