added release notes for about to be released Ditto 1.1.4

Signed-off-by: Thomas Jaeckle <thomas.jaeckle@bosch.io>

documentation/src/main/resources/_data/sidebars/ditto_sidebar.yml

@@ -23,6 +23,9 @@ entries:
   - title: Release Notes
     output: web
     folderitems:
+    - title: 1.1.4
+      url: /release_notes_114.html
+      output: web
     - title: 1.1.3
       url: /release_notes_113.html
       output: web

documentation/src/main/resources/pages/ditto/release_notes_114.md

@@ -0,0 +1,26 @@
+---
+title: Release notes 1.1.4
+tags: [release_notes]
+keywords: release notes, announcements, changelog
+summary: "Version 1.1.4 of Eclipse Ditto, released on 25.08.2020"
+permalink: release_notes_114.html
+---
+
+This is a bugfix release, no new features since [1.1.3](release_notes_113.html) were added.
+
+## Changelog
+
+Compared to the latest release [1.1.3](release_notes_113.html), the following bugfixes were added.
+
+### Bugfixes
+
+This is a complete list of the
+[merged pull requests](https://github.com/eclipse/ditto/pulls?q=is%3Apr+milestone%3A1.1.4), including the fixed bugs.
+
+
+#### [Compile model modules with Java 8](https://github.com/eclipse/ditto/pull/769)
+
+The 2 modules in the Ditto model were accidentally compiled with Java 11 as source/target which caused 
+that e.g. the Ditto client could not be used any longer with Java 8:
+* `rql-parser`
+* `thingssearch-parser`