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/order_utils/CHANGELOG.md

@@ -0,0 +1,12 @@
+# Changelog
+
+## 1.1.1 - 2019-02-26
+
+-   Replaced dependency on web3 with dependency on 0x-web3, to ease coexistence of those two packages.
+
+## 2.0.0 - 2019-04-30
+
+-   Changed `ERC20AssetData` and `ERC721AssetData` to inherit from `NamedTuple` rather than `TypedDict`.
+-   Deprecated methods `encode_erc20_asset_data()` and `encode_erc721_asset_data()`, in favor of new methods `encode_erc20()` and `encode_erc721()`. The old methods return a string, which is less than convenient for building orders using the provided `Order` type, which expects asset data to be `bytes`. The new methods return `bytes`.
+-   Expanded documentation.
+-   Stopped using deprecated web3.py interface `contract.call()` in favor of `contract.functions.X.call()`. This provides compatibility with the upcoming 5.x release of web3.py, and it also eliminates some runtime warning messages.

python-packages/order_utils/setup.py

@@ -148,11 +148,14 @@ with open("README.md", "r") as file_handle:
 
 setup(
     name="0x-order-utils",
-    version="1.0.1",
+    version="2.0.0",
     description="Order utilities for 0x applications",
     long_description=README_MD,
     long_description_content_type="text/markdown",
-    url="https://github.com/0xproject/0x-monorepo/python-packages/order_utils",
+    url=(
+        "https://github.com/0xProject/0x-monorepo/tree/development"
+        "/python-packages/order_utils"
+    ),
     author="F. Eugene Aumson",
     author_email="feuGeneA@users.noreply.github.com",
     cmdclass={