Merge branch 'prepare-0.10-rc0-release' into 'release-0.10'

Update version to 0.10.0-rc.0 and CHANGELOG.md release date

See merge request Astarte-NG/grafana-astarte-datasource!21

CHANGELOG.md

@@ -6,6 +6,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+## [0.10.0-rc.0] - 2019-04-03
+
 ## [0.10.0-beta.3] - 2018-12-19
 
 ## [0.10.0-beta.2] - 2018-10-19

package.json

@@ -1,6 +1,6 @@
 {
     "name": "astarte-appengine-datasource",
-    "version": "0.10.0-beta.3",
+    "version": "0.10.0-rc.0",
     "description": "Astarte Data Source for Grafana.",
     "scripts": {
         "build": "webpack"