added support of 4 queue levels
added support of 4 queue levels

rudy500/otrs,thorsteneckel/otrs,rudy500/otrs,balazj/otrs,mburggraf/otrs,noritnk/otrs,nilei/otrs,balazj/otrs,moritz/otrs,oiami/otrs,moritz/otrs,s7design/otrs,eliasp/otrs,s7design/otrs,eliasp/otrs,noritnk/otrs,linearregression/otrs,PortgasDAce/otrs,capeit-tto/otrs,s7design/otrs,vlascoder/otrs,crythias/otrs,thorsteneckel/otrs,brandonshults01/otrs,mburggraf/otrs,brandonshults01/otrs,brandonshults01/otrs,s7design/otrs,capeit-tto/otrs,StCyr/otrs,MBRG/otrs,muehlbauer/otrs,xhoy/otrs,eliasp/otrs,crythias/otrs,balazj/otrs,eliasp/otrs,linearregression/otrs,nilei/otrs,brandonshults01/otrs,xhoy/otrs,oiami/otrs,brandonshults01/otrs,mbeijen/otrs-1,balazj/otrs,xhoy/otrs,StCyr/otrs,nilei/otrs,StCyr/otrs,rudy500/otrs,PortgasDAce/otrs,mburggraf/otrs,MBRG/otrs,vlascoder/otrs,linearregression/otrs,moritz/otrs,mbeijen/otrs-1,xhoy/otrs,PortgasDAce/otrs,balazj/otrs,mburggraf/otrs,nilei/otrs,moritz/otrs,StCyr/otrs,thorsteneckel/otrs,StCyr/otrs,oiami/otrs,linearregression/otrs,vlascoder/otrs,xhoy/otrs,oiami/otrs,thorsteneckel/otrs,mbeijen/otrs-1,linearregression/otrs,mburggraf/otrs,thorsteneckel/otrs,muehlbauer/otrs,crythias/otrs,crythias/otrs,MBRG/otrs,nilei/otrs,muehlbauer/otrs,PortgasDAce/otrs,capeit-tto/otrs,crythias/otrs,rudy500/otrs,s7design/otrs,muehlbauer/otrs,MBRG/otrs,noritnk/otrs,PortgasDAce/otrs,oiami/otrs,MBRG/otrs,rudy500/otrs,muehlbauer/otrs,eliasp/otrs,moritz/otrs