BugFix when a subscriptionId is null the queue name end with '_'
BugFix when a subscriptionId is null the queue name end with '_'

alexwiese/EasyNetQ,EIrwin/EasyNetQ,Pliner/EasyNetQ,ar7z1/EasyNetQ,danbarua/EasyNetQ,EasyNetQ/EasyNetQ,maverix/EasyNetQ,lukasz-lysik/EasyNetQ,reisenberger/EasyNetQ,chinaboard/EasyNetQ,Pliner/EasyNetQ,ar7z1/EasyNetQ,sanjaysingh/EasyNetQ,zidad/EasyNetQ,nicklv/EasyNetQ,nicklv/EasyNetQ,Ascendon/EasyNetQ,chinaboard/EasyNetQ,lukasz-lysik/EasyNetQ,fpommerening/EasyNetQ,micdenny/EasyNetQ,alexwiese/EasyNetQ,Ascendon/EasyNetQ,tkirill/EasyNetQ,danbarua/EasyNetQ,maverix/EasyNetQ,zidad/EasyNetQ,EIrwin/EasyNetQ,sanjaysingh/EasyNetQ,mleenhardt/EasyNetQ,scratch-net/EasyNetQ,mleenhardt/EasyNetQ,blackcow02/EasyNetQ,scratch-net/EasyNetQ,reisenberger/EasyNetQ,alexwiese/EasyNetQ,blackcow02/EasyNetQ,fpommerening/EasyNetQ,tkirill/EasyNetQ