VRFS-194: added can_invite column to users

manifest

@@ -37,4 +37,5 @@ plays.sql
 session_settings.sql
 tracks_rename.sql
 reset_password.sql
-friend_request_changes.sql
+friend_request_changes.sql
+user_add_can_invite.sql

up/user_add_can_invite.sql

@@ -0,0 +1,2 @@
+-- add can_invite flag to users; for beta retrict
+ALTER TABLE users ADD COLUMN can_invite BOOLEAN NOT NULL DEFAULT true;