v0.4.0

Now with better error handling. If an error occurs while uploading a part to S3, or completing a multipart upload then the in progress multipart upload will be aborted (to delete the uploaded parts from S3) and a more descriptive error message will be emitted instead of the raw error response from S3.

v0.3.0

• Added tests using a stubbed out version of the Amazon S3 client. These tests will ensure that the upload stream behaves properly, calls S3 correctly, and emits the proper events.
• Added Travis integration
• Also fixed bug with the functionality to dynamically adjust the part size.