Bump version, update changelog

CHANGES.rst

@@ -4,6 +4,12 @@ Changelog
 Unreleased
 ----------
 
+3.1.1
+----------
+
+- Allow unicode string in ``@given()`` step names when using python2.
+  This makes the transition of projects from python 2 to 3 easier.
+
 3.1.0
 ----------
 

pytest_bdd/__init__.py

@@ -3,6 +3,6 @@
 from pytest_bdd.steps import given, when, then
 from pytest_bdd.scenario import scenario, scenarios
 
-__version__ = '3.1.0'
+__version__ = '3.1.1'
 
 __all__ = [given.__name__, when.__name__, then.__name__, scenario.__name__, scenarios.__name__]