IMGAPI-468: change submodule URLs to be non-ssh git urls
IMGAPI-468: change submodule URLs to be non-ssh git urls

numericillustration/sdc-imgapi,joyent/sdc-imgapi,numericillustration/sdc-imgapi,joyent/sdc-imgapi,joyent/sdc-imgapi,numericillustration/sdc-imgapi