Chore: 1.2.0

# [1.2.0](https://git.rwth-aachen.de/coscine/ts/app-util/compare/v1.1.0...v1.2.0) (2020-01-31)

### New

* Implemented Utility functions for the Sidebar (coscine/issues#603) ([e5451361](https://git.rwth-aachen.de/coscine/ts/app-util/commit/e5451361c0d365e2c83102647264ef44277e5683)), closes [coscine/issues#603](https://git.rwth-aachen.de/coscine/issues/issues/603)

package.json

 {
   "name": "@coscine/app-util",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "description": "This library provides utility methods for the CoScInE Apps with JavaScript.",
   "keywords": [
     "coscine",