Allow buckets outside of the US
Allow buckets outside of the US

Multicase bucket names require ordinary calling format
All other cases can use subdomain calling format

felliott/waterbutler,rafaeldelucena/waterbutler,Ghalko/waterbutler,chrisseto/waterbutler,kwierman/waterbutler,rdhyee/waterbutler,TomBaxter/waterbutler,CenterForOpenScience/waterbutler,cosenal/waterbutler,hmoco/waterbutler,icereval/waterbutler,Johnetordoff/waterbutler,RCOSDP/waterbutler