icinga: Move logrotate into module

Change-Id: I76006a6118e6a27ff9ae70454a1a91589fe0ace8
icinga: Move user / group setup into module

Change-Id: Ib2607d3502cad47d6f375603079faac69428531e
Merge "icinga: Move logrotate into module" into production
Merge "icinga: Move user / group setup into module" into production