fixed identifier to be unique across all accounts (#1295)
fixed identifier to be unique across all accounts (#1295)

Now composed by user-uuid, settingsmeta-hash and skill-folder
forslund/mycroft-core,linuxipho/mycroft-core,Dark5ide/mycroft-core,linuxipho/mycroft-core,forslund/mycroft-core,Dark5ide/mycroft-core,MycroftAI/mycroft-core,MycroftAI/mycroft-core