React on Nickserv telling us that the Nick is Registered
Allow to specify a custom handler name -> for multiple commands sharing one handler
Allow to specify a custom handler name -> hand over the command name to the handler
Allow to specify a custom handler name -> documentation
Allow to specify a custom handler name -> documentation optimization/allowing to specify any handler name
fix handler handling, added support for command aliases to help
fixes for the handler/alias handling
extended alias support calling commands by the aliases and made help convert the command to lowercase before matching it throu alias/command help