Release pubsub 0.45.0 (#8839)

* Release 0.45.0

* Remove redundant PubSub prefix from changelog item

Author: plamut

CHANGELOG.md

@@ -4,6 +4,21 @@
 
 [1]: https://pypi.org/project/google-cloud-pubsub/#history
 
+## 0.45.0
+
+07-31-2019 02:03 PDT
+
+
+### Implementation Changes
+
+- Remove deprecated methods and settings ([#8836](https://github.com/googleapis/google-cloud-python/pull/8836))
+
+
+### Documentation
+
+- Use double backticks for ReST correctness. ([#8829](https://github.com/googleapis/google-cloud-python/pull/8829))
+- Update intersphinx mapping for requests. ([#8805](https://github.com/googleapis/google-cloud-python/pull/8805))
+
 ## 0.44.0
 
 07-29-2019 04:28 PDT

setup.py

@@ -22,7 +22,7 @@
 
 name = "google-cloud-pubsub"
 description = "Google Cloud Pub/Sub API client library"
-version = "0.44.0"
+version = "0.45.0"
 # Should be one of:
 # 'Development Status :: 3 - Alpha'
 # 'Development Status :: 4 - Beta'