Bug 1604360 - [manifestparser] Version bump to 2.0.0, r=egao

Since we made backwards incompatible changes, let's do a major version bump.

Differential Revision: https://phabricator.services.mozilla.com/D57478

--HG--
extra : moz-landing-system : lando

testing/mozbase/manifestparser/setup.py

@@ -7,7 +7,7 @@ from __future__ import absolute_import
 from setuptools import setup
 
 PACKAGE_NAME = "manifestparser"
-PACKAGE_VERSION = '1.2'
+PACKAGE_VERSION = '2.0.0'
 
 DEPS = [
     'mozlog >= 5.0',