Python publish for v3 (#2383)

* Remove pre-release suffixes from version numbers

* For wrapper test, pull latest ganache image first

* For wrapper test, unpin ganache, use beta snapshot

* In docs, advise using beta ganache snapshot

Because we haven't yet published the non-beta snapshot

* Unpin package interdependencies

* unpin tests from beta 0xorg/ganache-cli version

* use beta ganache snapshot

* Set release date in CHANGELOGs

* In testing deployment, stop testing pre-releases

* Include rmtree("build") in all clean commands

* Fix clean not cleaning what it thought it was

* In monorepo script, install pkgs 1st then dev deps

* Stop pinning ganache snapshot version

* In test setup, wait longer for mesh to start up

* Fix broken hyperlinks in docs

* fix missing \n that was breaking doc rendering

* In monorepo script comment, fix typo, and clarify

python-packages/contract_addresses/setup.py

@@ -87,6 +87,7 @@ class CleanCommandExtension(clean):
     def run(self):
         """Run the regular clean, followed by our custom commands."""
         super().run()
+        rmtree("build", ignore_errors=True)
         rmtree("dist", ignore_errors=True)
         rmtree(".mypy_cache", ignore_errors=True)
         rmtree(".tox", ignore_errors=True)
@@ -151,7 +152,7 @@ with open("README.md", "r") as file_handle:
 
 setup(
     name="0x-contract-addresses",
-    version="3.0.0.dev3",
+    version="3.0.0",
     description="Addresses at which the 0x smart contracts have been deployed",
     long_description=README_MD,
     long_description_content_type="text/markdown",