Mapboxcli

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- Breaking change: remove the deprecated Distance API
- Breaking change: remove the deprecated Surface API
- Pin to mapbox-sdk-py version 0.16.1

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- Pin to mapbox-sdk-py version 0.14.0, the most recent compatible version

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- Breaking change: mapbox subcommands like 'upload' are no longer plugins. We
are trading extensibility for speed (95).
- New feature: when saving a fraction of a second matters, mapbox subcommands
can now be executed more quickly via `python -m mapboxcli upload` (95).
The `mapbox` console script remains the best command for ordinary usage on
all platforms.
- mapbox sdk 0.12.2

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- use mapbox sdk 0.12.1

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- Bugfix, ascii charaters in upload progressbar (see 98)

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- Breaking change: in mapbox-upload TILESET is now the first positional
argument and source file the second, reversing the order set in 0.4.0 (85).
- Add a uploads progress bar (86).
- Skip staging for datasources in accessible S3 buckets (49).
- Requirements: use mapbox SDK version >=0.11.