release: Make 0.15.4 release

Author: Bjwebb

CHANGELOG.md

@@ -6,11 +6,13 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+## [0.15.4] - 2021-03-08
+
 ### Fixed
 
 - Fix parsing date and number formatting from .ods files https://github.com/OpenDataServices/flatten-tool/pull/373
 
-## [0.15.3] - 2020-02-23
+## [0.15.3] - 2021-02-23
 
 ### Fixed
 

setup.py

@@ -40,7 +40,7 @@ def run(self):
 
 setup(
     name="flattentool",
-    version="0.15.3",
+    version="0.15.4",
     author="Open Data Services",
     author_email="[email protected]",
     packages=["flattentool"],