feat(configurator): find domains with uninstalled click-counters
chore(TODO): added todo
refactor(DomainAlternative): remove unused DomainAlternative
feat(clickcounter): add configuration service interface
chore(CS): remove unused code
feat(charity): implement sending of click-counter config

… up to the mailer call
refactor(contentful): add Interface to interfaces
feat(ContentMailer): made it extendable
feat(Click-Counter): implement config sending
Merge branch 'master' into live
fix(Click-Counter): fix subcommand call
fix(ShuffleExtension): use more test data
Merge branch 'master' into live