Merge pull request #20 from truemail-rb/develop

truemail-crystal-client v0.2.1

Technical/Update shard dependencies (#12)

* Updated Crystal version
* Updated shard development dependencies
* Updated shard documentation
* Updated CircleCi config
* Updated shard version, license, changelog

Technical/Update shard dependencies (#10)

* Added bug report template
* Added issue report template
* Added feature request template
* Added question template
* Added branch naming convention
* Updated shard development dependencies
* Updated changelog, shard version
* Updated pull request template
* Updated contributing guidelines
* Updated readme

Technical/Add repo artifacts (#8)