Fix execution failure when don't find costume images or Haart file
Fix execution failure when don't find costume images or Haart file

Change-Id: Ie6cd81246066c96049979163fff882ad91db48ab

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