Cli/Command: Add @type PHPDoc to params
cli/webserver config: Fix --config sanity check
Cli: Remove useless sprintf format in Command::fail()
Cli: Fix parameter documentation for ConfigCommand::webserverAction()

We speak of icingaweb2 not icingaweb now.
setup: Set default URL path to /icingaweb2
setup: Add --config switch to TokenCommand::showAction()

refs #7906