Log Message:
bandcamp-dl: updated to 0.0.13

Bandcamp-dl 0.0.13

Minor bugfix update and requirements version bump.

In some cases a track may fail to download if the album release or track release \ 
date is missing, an additional fallback has been added in this case, now it will \ 
default to when the track was released on Bandcamp specifically if no other \ 
metadata is found.