chore(release): 3.1.0-beta.1 [skip ci]

# [3.1.0-beta.1](v3.0.1...v3.1.0-beta.1) (2020-08-26)

### Bug Fixes

* propert handle null valuescloses [#304](#304) ([7d16a4e](7d16a4e))

### Features

* allow to clear <select> field ([19e8db9](19e8db9)), closes [#161](#161)
* unify flatten unflatten logic ([b8435de](b8435de)), closes [#352](#352)

Author: semantic-release-bot

package.json

@@ -1,6 +1,6 @@
 {
   "name": "admin-bro",
-  "version": "3.0.1",
+  "version": "3.1.0-beta.1",
   "description": "Admin panel for apps written in node.js",
   "main": "index.js",
   "types": "index.d.ts",