v0.3.0

• Added presigned url support

v0.2.9

• Remove multipart shard.
• Use HTTP::FormData from stdlib.

v0.2.8

• Removes Integer support for PostField
• Adds #[] to FieldCollection
• Adds #to_hash to FieldCollection

v0.2.7

• Make versions consistent

v0.2.6

• Add a Presigned::Form with ability to submit files. See here for example.
• Presigned::Post is now private api.

v0.2.5

• Introduced Presigned::Post concept. See the presigned post example for details.
• README enhancements.
• Separate examples demonstrating features.