Bump for 2.5.1 release

Author: tienne-B

.github/CHANGELOG.rst

@@ -2,6 +2,15 @@
 Change Log
 ==========
 
+2.5.1
+-----
+*Release date: 4 December 2020*
+
+- Fixed breaks API endpoints not getting the break category
+- Ensured that the "votes/ballots carried" team metric is always defined (`#1682 <https://github.com/TabbycatDebate/tabbycat/issues/1682>`_)
+- Re-implemented rank filters for speaker standings
+
+
 2.5.0 (Nebelung)
 ----------------
 *Release date: 30 November 2020*

docs/conf.py

@@ -60,7 +60,7 @@
 # The short X.Y version.
 version = '2.5'
 # The full version, including alpha/beta/rc tags.
-release = '2.5.0'
+release = '2.5.1'
 
 rst_epilog = """
 .. |vrelease| replace:: v{release}

tabbycat/settings/core.py

@@ -22,9 +22,9 @@
 # Version
 # ==============================================================================
 
-TABBYCAT_VERSION = '2.5.0'
+TABBYCAT_VERSION = '2.5.1'
 TABBYCAT_CODENAME = 'Nebelung'
-READTHEDOCS_VERSION = 'v2.5.0'
+READTHEDOCS_VERSION = 'v2.5.1'
 
 # ==============================================================================
 # Internationalization and Localization