Add robust import of YAML for #557
Add robust import of YAML for #557

michaeljoseph/cookiecutter,stevepiercy/cookiecutter,terryjbates/cookiecutter,willingc/cookiecutter,audreyr/cookiecutter,ramiroluz/cookiecutter,hackebrot/cookiecutter,Springerle/cookiecutter,dajose/cookiecutter,pjbull/cookiecutter,ramiroluz/cookiecutter,dajose/cookiecutter,michaeljoseph/cookiecutter,willingc/cookiecutter,Springerle/cookiecutter,luzfcb/cookiecutter,terryjbates/cookiecutter,audreyr/cookiecutter,hackebrot/cookiecutter,stevepiercy/cookiecutter,pjbull/cookiecutter,luzfcb/cookiecutter