Assign default add patch set permission on refs/for/*

By default each user should be able to add patch sets on all open changes.
We have created a new permission to lock changes, such that only
the change owner or a specific group can add new patchsets to exisitng
changes.

groups

diff --git a/groups b/groups
index fba7548..bc623c7 100644
--- a/groups
+++ b/groups
@@ -1,6 +1,6 @@
-# UUID                                  	Group Name
+# UUID                 	Group Name
 #
-global:Anonymous-Users                  	Anonymous Users
-global:Project-Owners                   	Project Owners
-global:Registered-Users                 	Registered Users
-ldap:android-devtools                   	ldap/android-devtools
+global:Anonymous-Users 	Anonymous Users
+global:Project-Owners  	Project Owners
+global:Registered-Users	Registered Users
+ldap:android-devtools  	ldap/android-devtools

project.config

diff --git a/project.config b/project.config
index 80d824e..6c33b6e 100644
--- a/project.config
+++ b/project.config
@@ -53,3 +53,5 @@
 	value =  0 No score
 	value = +1 Looks good to me, but someone else must approve
 	value = +2 Looks good to me, approved
+[access "refs/for/*"]
+	addPatchSet = group Registered Users