Bump version 5.13.0 (#160)

* Bump version 5.13.0

* update changelog for dev mode argument parsing

* change versioning to minor version bump

Co-authored-by: RushiT0122 <rtodkar@stitchdata-talend.com>

Author: RushiT0122

CHANGELOG.md

@@ -1,5 +1,8 @@
 # Changelog
 
+## 5.13.0
+  * Add support for dev mode argument parsing [#158](https://github.com/singer-io/singer-python/pull/158)
+
 ## 5.12.2
   * Removes pinned `pytz` version [#152](https://github.com/singer-io/singer-python/pull/152)
 

setup.py

@@ -4,7 +4,7 @@
 import subprocess
 
 setup(name="singer-python",
-      version='5.12.2',
+      version='5.13.0',
       description="Singer.io utility library",
       author="Stitch",
       classifiers=['Programming Language :: Python :: 3 :: Only'],