Release 0.9.0

Signed-off-by: Brian Brazil <[email protected]>

Author: brian-brazil

setup.py

@@ -12,7 +12,7 @@
 
 setup(
     name="prometheus_client",
-    version="0.8.0",
+    version="0.9.0",
     author="Brian Brazil",
     author_email="[email protected]",
     description="Python client for the Prometheus monitoring system.",