Bump package versions for release on 2019-07-31 (#154)

Author: cartertinney

azure-iot-device/.bumpverion.cfg

@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 2.0.0-preview.8
+current_version = 2.0.0-preview.9
 parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)-preview\.(?P<preview>\d+)
 serialize = {major}.{minor}.{patch}-preview.{preview}
 

azure-iot-device/azure/iot/device/constant.py

@@ -6,7 +6,7 @@
 """This module defines constants for use across the azure-iot-device package
 """
 
-VERSION = "2.0.0-preview.8"
+VERSION = "2.0.0-preview.9"
 USER_AGENT = "py-azure-iot-device/{version}".format(version=VERSION)
 IOTHUB_API_VERSION = "2018-06-30"
 PROVISIONING_API_VERSION = "2019-03-31"