Handle unicode strings in merge-dict
Handle unicode strings in merge-dict

Change-Id: I07958aa5f06ab74f2a5ff8f568897863426ba04f

DavidPurcell/murano_temp,sajuptpm/murano,olivierlemasle/murano,sergmelikyan/murano,satish-avninetworks/murano,sajuptpm/murano,openstack/murano,NeCTAR-RC/murano,DavidPurcell/murano_temp,olivierlemasle/murano,chenyujie/hybrid-murano,ativelkov/murano-api,chenyujie/hybrid-murano,olivierlemasle/murano,DavidPurcell/murano_temp,sergmelikyan/murano,DavidPurcell/murano_temp,satish-avninetworks/murano,openstack/murano,telefonicaid/murano,satish-avninetworks/murano,satish-avninetworks/murano,NeCTAR-RC/murano,NeCTAR-RC/murano,telefonicaid/murano,NeCTAR-RC/murano,ativelkov/murano-api,olivierlemasle/murano