Add new sandbox (#741)

* Add new sandbox files and remove temporary unavailable notice
* remove old deployment script
* adapt application properties
* restructure hawkbit-runtime
* move sandbox description.
* adapt license checks
* Introduce review findings and add new docker files
* Remove redundant profile and attribute
* Update website
* redirect to sandbox
* getting started
* Add description for docker folder and renew favicon

docs/content/release-notes.md

@@ -3,6 +3,12 @@ title: Release Notes
 weight: 100
 ---
 
+## 0.2.2
+
+**Release Date:** Thursday, September 21, 2018 <br />
+[Tag](https://github.com/eclipse/hawkbit/releases/tag/0.2.2) / 
+[Release](https://github.com/eclipse/hawkbit/milestone/10?closed=1)
+
 ## 0.2.1
 
 **Release Date:** Friday, July 6, 2018 <br />