Update changelog for 2.0.0-1ubuntu1 release

Author: furlongm

debian/changelog

@@ -1,3 +1,12 @@
+patchman (2.0.0-1ubuntu1) UNRELEASED; urgency=medium
+
+  * update patchman-set-secret-key
+  * update logic to find local_settings
+  * update whitenoise config
+  * update requirements
+
+ -- Marcus Furlong <[email protected]>  Tue, 07 Jul 2020 03:24:46 +0000
+
 patchman (2.0.0-1) stable; urgency=medium
 
   [ Marcus Furlong ]