Use pbr for version numbers

Hardcoding version numbers means that they need to be updated for each
release. Instead let pbr set the version number everywhere.

Change-Id: I5037cf9d0e0adf0eed9cc3d18b36490cc2649e90

doc/source/conf.py

@@ -55,10 +55,12 @@ bug_tag = 'python-freezerclient'
 # |version| and |release|, also used in various other places throughout the
 # built documents.
 #
+import pbr.version
+freezer_version = pbr.version.VersionInfo('python-freezerclient')
 # The short X.Y version.
-version = '2.0'
+version = freezer_version.canonical_version_string()
 # The full version, including alpha/beta/rc tags.
-release = '2.0.0'
+release = freezer_version.version_string_with_vcs()
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.

setup.cfg

@@ -1,6 +1,5 @@
 [metadata]
 name = python-freezerclient
-version = 2.0.0
 summary = OpenStack Disaster Recovery API Client Library
 description-file =
     README.rst