recorderendpoint: Do signal when change of state to stop is completed
recorderendpoint: Do signal when change of state to stop is completed

Release blocked processes in case they are waiting for the change of
state to complete

Change-Id: I0b35e5cd81b8af8f331e6388105a162aa1dedacf

TribeMedia/kms-elements,TribeMedia/kms-elements,shelsonjava/kms-elements,Kurento/kms-elements,shelsonjava/kms-elements,shelsonjava/kms-elements,Kurento/kms-elements,Kurento/kms-elements,TribeMedia/kms-elements