fix missing invoker parallel docker operations flag.
fix missing invoker parallel docker operations flag.

nwspeete-ibm/openwhisk,domdom82/openwhisk,CrowdFlower/incubator-openwhisk,paulcastro/openwhisk,tysonnorris/openwhisk,jasonpet/openwhisk,dubeejw/openwhisk,jeremiaswerner/openwhisk,duynguyen/incubator-openwhisk,rabbah/openwhisk,sven-lange-last/openwhisk,markusthoemmes/openwhisk,starpit/openwhisk,RSulzmann/openwhisk,tysonnorris/openwhisk,akrabat/openwhisk,xin-cai/openwhisk,CrowdFlower/incubator-openwhisk,paulcastro/openwhisk,houshengbo/openwhisk,akrabat/openwhisk,RSulzmann/openwhisk,CrowdFlower/incubator-openwhisk,prccaraujo/openwhisk,houshengbo/openwhisk,houshengbo/openwhisk,sven-lange-last/openwhisk,CrowdFlower/incubator-openwhisk,cbickel/openwhisk,markusthoemmes/openwhisk,markusthoemmes/openwhisk,jeremiaswerner/openwhisk,cbickel/openwhisk,sven-lange-last/openwhisk,RSulzmann/openwhisk,starpit/openwhisk,xin-cai/openwhisk,RSulzmann/openwhisk,paulcastro/openwhisk,csantanapr/incubator-openwhisk,sven-lange-last/openwhisk,csantanapr/incubator-openwhisk,prccaraujo/openwhisk,rabbah/openwhisk,starpit/openwhisk,prccaraujo/openwhisk,csantanapr/incubator-openwhisk,jasonpet/openwhisk,nwspeete-ibm/openwhisk,prccaraujo/openwhisk,sven-lange-last/openwhisk,RSulzmann/openwhisk,duynguyen/incubator-openwhisk,cbickel/openwhisk,markusthoemmes/openwhisk,openwhisk/openwhisk,lzbj/openwhisk,openwhisk/openwhisk,style95/openwhisk,akrabat/openwhisk,nwspeete-ibm/openwhisk,devbv/incubator-openwhisk,jeremiaswerner/openwhisk,akrabat/openwhisk,dubeejw/openwhisk,houshengbo/openwhisk,rabbah/openwhisk,CrowdFlower/incubator-openwhisk,prccaraujo/openwhisk,devbv/incubator-openwhisk,lzbj/openwhisk,duynguyen/incubator-openwhisk,dubeejw/openwhisk,openwhisk/openwhisk,starpit/openwhisk,starpit/openwhisk,tysonnorris/openwhisk,paulcastro/openwhisk,CrowdFlower/incubator-openwhisk,style95/openwhisk,RSulzmann/openwhisk,jasonpet/openwhisk,style95/openwhisk,akrabat/openwhisk,paulcastro/openwhisk,nwspeete-ibm/openwhisk,prccaraujo/openwhisk,markusthoemmes/openwhisk,style95/openwhisk,openwhisk/openwhisk,csantanapr/incubator-openwhisk,xin-cai/openwhisk,cbickel/openwhisk,paulcastro/openwhisk,devbv/incubator-openwhisk,csantanapr/incubator-openwhisk,rabbah/openwhisk,jasonpet/openwhisk,jeremiaswerner/openwhisk,jeremiaswerner/openwhisk,RSulzmann/openwhisk,houshengbo/openwhisk,paulcastro/openwhisk,houshengbo/openwhisk,jasonpet/openwhisk,xin-cai/openwhisk,akrabat/openwhisk,jeremiaswerner/openwhisk,tysonnorris/openwhisk,openwhisk/openwhisk,tysonnorris/openwhisk,style95/openwhisk,dubeejw/openwhisk,domdom82/openwhisk,xin-cai/openwhisk,dubeejw/openwhisk,jasonpet/openwhisk,devbv/incubator-openwhisk,domdom82/openwhisk,csantanapr/incubator-openwhisk,domdom82/openwhisk,starpit/openwhisk,duynguyen/incubator-openwhisk,rabbah/openwhisk,lzbj/openwhisk,domdom82/openwhisk,nwspeete-ibm/openwhisk,jeremiaswerner/openwhisk,lzbj/openwhisk,tysonnorris/openwhisk,csantanapr/incubator-openwhisk,akrabat/openwhisk,domdom82/openwhisk,cbickel/openwhisk,cbickel/openwhisk,style95/openwhisk,nwspeete-ibm/openwhisk,prccaraujo/openwhisk,devbv/incubator-openwhisk,rabbah/openwhisk,jasonpet/openwhisk,duynguyen/incubator-openwhisk,dubeejw/openwhisk,houshengbo/openwhisk,style95/openwhisk,markusthoemmes/openwhisk,rabbah/openwhisk,sven-lange-last/openwhisk,markusthoemmes/openwhisk,lzbj/openwhisk,markusthoemmes/openwhisk,sven-lange-last/openwhisk,openwhisk/openwhisk,lzbj/openwhisk,cbickel/openwhisk,nwspeete-ibm/openwhisk,tysonnorris/openwhisk,xin-cai/openwhisk