Expand handling of exceptions

Includes code changes which allow for more graceful error handling.

Remove Python 2.7 support

This also bumps tuspy – thanks @hugovk and @jaylinski!

1.0.11

Fixed

• Removed some README changes to setup.py.

1.0.10

Changed

• Updated the "Development Status" classifier in the package to stable.

1.0.9

Changed

• Downgraded our tuspy requirement. (#136)

1.0.8

Fixed

• Added some more handling for non-Vimeo exceptions. (#134)

1.0.7

Changed

• Updated our requirement for tuspy. (#131)

1.0.6

Added

• Added support for dynamic Tus chunk sizes. (#130)

1.0.5

Changed

• Changed the Tus retry work added in [1.0.4] to use the native retries parameter within the Tus uploader. (#127)

1.0.4

Added

• Tus uploads will now retry up to a number of 3 times if failures occur. (#126)