Add SSL options to configuration (#114)

* Add development guide for schema registry
* Bump version to 0.28.0

Replace Logger.warn/1 with Logger.warning/2 (#107)

* Bump min. version of Elixir to 1.12
* Update CI setup and list of supported versions
* Update dependencies
* Bump version to v0.27.0

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Co-authored-by: Sergey Fedorov <[email protected]>

Bump version to v0.26.0

Bump version to v0.25.0

Bump version to v0.24.2

* Update changelog

Bump version to v0.24.1

* Update dependencies

Update dependencies

Run all private client tests in sync mode

Some tests are counting output lines to make sure that
only what is needed read.

Add `opt_app` configuration option (#89)

* Extend Avrora.Config.schemas_path/0 with otp_app
* Bump version to v0.22.0
* Update documentation

Bump version to v0.21.1