1.2.0

Added

• Add support for Python 3.9
• Support for bucket to bucket sync
• Add a possibility to append a string to the User-Agent in B2Http

Changed

• Change default fetch count for ls to 10000

Removed

• Drop Python 2 and Python 3.4 support 🎉
• Remove --prefix from ls (it didn't really work, use folderName argument)

Fixed

• Allow to set an empty bucket info during the update
• Fix docs generation in CI