Add a trailing / to the metadata hook url
Add a trailing / to the metadata hook url

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