Switched version files to dev for next version development

Author: pjt0620

CHANGELOG.rst

@@ -1,6 +1,9 @@
 OpenXC Python Library Changelog
 ===============================
 
+v0.15.0-dev
+----------
+
 v0.15.0
 ----------
 

README.rst

@@ -4,7 +4,7 @@ OpenXC for Python
 
 .. image:: /docs/_static/logo.png
 
-:Version: 0.15.0
+:Version: 0.15.0-dev
 :Web: http://openxcplatform.com
 :Download: http://pypi.python.org/pypi/openxc/
 :Documentation: http://python.openxcplatform.com
@@ -32,7 +32,11 @@ manipulating previously recorded vehicle data.
 
 To package run "setup.py sdist bdist_wheel"
 to push to pypi run "python -m twine upload dist/*"
-
+Version files:
+	CHANGELOG.rst
+	README.rst
+	openxc/version.py
+	docs/index.rst
 
 License
 =======