Bump version for v1.2.3 release

Also removed "Beta status" from the classifier list in setup.py

CHANGES.md

@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [1.2.3] - 2019-12-20
 ### Added
 - Added `--no-remove-original-file` ([@NightMachinary](https://github.com/NightMachinary)) (#580)
 - Added leading Zeros in `track_number` for correct sorting ([@Dsujan](https://github.com/Dsujan)) (#592)

setup.py

@@ -46,7 +46,6 @@ setup(
         "metadata",
     ],
     classifiers=[
-        "Development Status :: 4 - Beta",
         "Intended Audience :: End Users/Desktop",
         "License :: OSI Approved :: MIT License",
         "Programming Language :: Python",

spotdl/__init__.py

@@ -1 +1 @@
-__version__ = "1.2.2"
+__version__ = "1.2.3"