0.9.14

New Features

• #173 Options::with_static_credentials adds
  support for static credential files for use
  in environments where they are injected into
  the process by means other than an on-disk file.
• #174 IntervalTree now has the methods min,
  max, and gaps for getting the minimum,
  maximum, and non-contiguous gaps for the tracked
  intervals, for use in situations where users
  may want to implement their own deduplication
  strategies.