Enhancements
- [Introduce](https://github.com/Netflix/metaflow/pull/53) `metaflow configure [import|export]` for importing/exporting Metaflow configurations.
- [Revamp](https://github.com/Netflix/metaflow/pull/59) `metaflow configure aws` command to address usability [concerns](https://github.com/Netflix/metaflow/issues/44).
- [Handle](https://github.com/Netflix/metaflow/pull/56) keyboard interrupts for Batch jobs [more gracefully for large fan-outs](https://github.com/Netflix/metaflow/issues/54).
Bug Fixes
- [Fix](https://github.com/Netflix/metaflow/pull/62) a docker registry parsing bug in AWS Batch.
- Fix various typos in Metaflow tutorials.