bump versions, after recent publications (#1646)

* bump versions, after recent publications

* Changelog updates and version bumps

* Correct broken URL's in setup.py's

* Correct SRA Client description (append "Client")

* Add convenience script for uninstalling all pkgs

* Add documentation link to SRA Client README.md

python-packages/contract_artifacts/CHANGELOG.md

@@ -0,0 +1,9 @@
+# Changelog
+
+## 2.0.0 - 2019-01-09
+
+-   Initial release.
+
+## 2.0.1 - 2019-04-30
+
+-   Expanded documentation.

python-packages/contract_artifacts/setup.py

@@ -127,7 +127,7 @@ with open("README.md", "r") as file_handle:
 
 setup(
     name="0x-contract-artifacts",
-    version="2.0.0",
+    version="2.0.1",
     description="0x smart contract compilation artifacts",
     long_description=README_MD,
     long_description_content_type="text/markdown",