Merge pull request #54 from zwirek/feature/scram-sha-256-authorization

Support for scram-sha-256 authentication method

Remove optional argument on Sync before required argument. Fixes #45 …

…and #46

Merge pull request #41 from WyriHaximus-labs/always_ensure_we_have_a_…

…connection_at_index_0

Always ensure we have a connection at index 0

Cancellation improvements

Merge pull request #36 from voryx/listen_notify

Add LISTEN/NOTIFY support

Cleanup README

Merge pull request #22 from voryx/rx2

Update to RxPHP v2 and PHP 7

Update CHANGELOG.md

Update CHANGELOG.md

Update CHANGELOG.md