Preparing release 3.1.0

Author: Yuri Shkuro

CHANGELOG.rst

@@ -3,10 +3,12 @@
 History
 -------
 
-3.0.1 (unreleased)
+3.1.0 (2019-05-12)
 ------------------
 
-- Nothing changed yet.
+- Unpin OpenTracing dependency and change to a range (#40) <Nathan Hsieh>
+- Add support for Python 3.5+ (#39) <Aliaksei Urbanski>
+- Include 0,1 as acceptable sampled value (#37) <Dominik Janků>
 
 
 3.0.0 (2018-07-10)

setup.py

@@ -2,7 +2,7 @@
 
 setup(
     name='basictracer',
-    version='3.0.1.dev0',
+    version='3.1.0',
     author='The OpenTracing Authors',
     author_email='info@opentracing.io',
     license='MIT',