Make whisper.info() return None for a non-existant file
Make whisper.info() return None for a non-existant file

piotr1212/whisper,kerlandsson/whisper,jjneely/whisper,akbooer/whisper,deniszh/whisper,obfuscurity/whisper,graphite-project/whisper,penpen/whisper,cbowman0/whisper,alexandreboisvert/whisper,graphite-server/whisper