Implement materialized_path for figshare metadata
Implement materialized_path for figshare metadata

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