bump to version 3.0.0

Author: Mark Kuhn

setup.py

@@ -5,7 +5,7 @@
 
 setup(
     name="aws-embedded-metrics",
-    version="2.0.0",
+    version="3.0.0",
     author="Amazon Web Services",
     author_email="[email protected]",
     description="AWS Embedded Metrics Package",