0.7.0

Changelog

f1bc567 Add backoff to List
77837ce Add backoff to download function
b02e7e3 Make local output configurable
731afd0 Migrate release to goreleaser
1d056c5 Remove dropbox and local sync option
859d919 Share client do functionality & retries
c276544 Update readme
b0cd5b8 Use a boolean variable for retry fail