Bump version to 2.0 and update changelog

CHANGELOG.rst

@@ -6,6 +6,12 @@ All notable changes to this project will be documented in this file.
 The format is based on `Keep a Changelog`_,
 and this project adheres to `Semantic Versioning`_.
 
+
+`2.0`_ - 2021-12-27
+-------------------
+
+Nothing changed.
+
 `2.0b1`_ - 2021-11-07
 ---------------------
 
@@ -36,3 +42,4 @@ Added
 
 .. _2.0b0: https://edugit.org/AlekSIS/Official/AlekSIS/-/tags/2.0b0
 .. _2.0b1: https://edugit.org/AlekSIS/Official/AlekSIS/-/tags/2.0b1
+.. _2.0: https://edugit.org/AlekSIS/Official/AlekSIS/-/tags/2.0

pyproject.toml

 [tool.poetry]
 name = "AlekSIS-App-Resint"
-version = "2.0b0"
+version = "2.0"
 packages = [
     { include = "aleksis" }
 ]
@@ -21,7 +21,7 @@ license = "EUPL-1.2-or-later"
 homepage = "https://aleksis.org/"
 repository = "https://edugit.org/AlekSIS/official/AlekSIS-App-Resint"
 classifiers = [
-    "Development Status :: 4 - Beta",
+    "Development Status :: 5 - Production/Stable",
     "Environment :: Web Environment",
     "Intended Audience :: Education",
     "Topic :: Education"