Add release action

Bump version 1.1.2

Merge pull request #157 from edgurgel/fix-ping

Fix PingHandler

Bump version 1.1.0

Fix configuration scripts

Bump version to 0.8.1

Reduce Docker image size from 165 MB to 32.8 MB (#131)

Reduce Docker image size from 165 MB to 32.8 MB

Using multi-stage build available from Docker 17.05 to avoid having any
build artifacts.

Merge pull request #130 from edgurgel/fix-user-handler-json

Fix UsersHandler JSON generation

Change Poxa.Supervisor to check if web hook was configured

Merge pull request #128 from edgurgel/fix-trigger-event-unauthorized

Fix EventHandler.is_authrozied/2 for unauthorized requests