Merge branch 'master' into develop

# Conflicts:
#	CHANGELOG.md
#	Dockerfile
#	config/Constants.php

.drone.yml

@@ -0,0 +1,57 @@
+---
+kind: pipeline
+type: docker
+name: default
+
+trigger:
+    event:
+        include:
+            - push
+            - cron
+    branch:
+        - master
+
+environment: &default_environment
+    REVISION: ${DRONE_COMMIT_SHA}
+    CREATED: ${DRONE_BUILD_CREATED}
+    SOURCE_URL: ${DRONE_GIT_HTTP_URL}
+    # also change in 'tags' of build docker
+    TS3WEB_VERSION: 2.2.5
+
+steps:
+    -   name: build docker image
+        image: plugins/docker
+        environment:
+            <<: *default_environment
+        settings:
+            purge: true
+            repo: varakh/ts3web
+            username:
+                from_secret: dockerhub_user
+            password:
+                from_secret: dockerhub_key
+            tags:
+                - latest
+                - 2.2.5
+
+    -   name: notify
+        image: drillster/drone-email
+        settings:
+            subject: "Build failed"
+            body: "URL ${DRONE_BUILD_LINK}"
+            host:
+                from_secret: mail_host
+            username:
+                from_secret: mail_user
+            password:
+                from_secret: mail_password
+            from:
+                from_secret: mail_from
+        when:
+            status:
+                - failure
+---
+kind: signature
+hmac: f575a63bd85c4a95593be5e077373216fbd50ad57e6b3d1db56f950e881ed2a5
+
+...

README.md

@@ -1,5 +1,7 @@
 # README
 
+[![Build Status](https://drone.myservermanager.com/api/badges/varakh/ts3web/status.svg)](https://drone.myservermanager.com/varakh/ts3web)
+
 ts3web is a free and open-source web interface for TeamSpeak 3 instances.
 
 The minimalistic approach of this application is intentional.