Better validation and a small hack for path
Better validation and a small hack for path

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