Changelog
731efdc Release 0.4.1
211b669 Return bad request if the bucket argument is empty (#26)
8b5e4b9 Update README.md
68f34b0 Add logging flags to kingpin app (#25)
bdf0932 Amend pagination to avoid nil pointer dereference (#19)
44d5e40 Add a metric that measures s3 list duration (#20)
