Fix memory management in gstautomuxerbin
Fix memory management in gstautomuxerbin

Change-Id: I27440dff8115e25d7551c13953308ad4341bb5cd

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