bump to v3.1.0 (#98)

Author: meshwa19

setup.py

@@ -5,7 +5,7 @@
 
 setup(
     name="aws-embedded-metrics",
-    version="3.0.0",
+    version="3.1.0",
     author="Amazon Web Services",
     author_email="jarnance@amazon.com",
     description="AWS Embedded Metrics Package",