Drivers cannot add new series in IDerivativeDistributions

The permissions are mistakenly set to launchpad.Append and they should be launchpad.Moderate.

Curtis proposes this patch:
=== modified file 'lib/lp/registry/browser/configure.zcml'
--- lib/lp/registry/browser/configure.zcml 2011-03-31 12:53:27 +0000
+++ lib/lp/registry/browser/configure.zcml 2011-04-06 14:22:33 +0000
@@ -1964,7 +1964,7 @@
         for="lp.registry.interfaces.distribution.IDerivativeDistribution"
         class="lp.registry.browser.distroseries.DistroSeriesAddView"
         facet="overview"
- permission="launchpad.Append"
+ permission="launchpad.Moderate"
         template="../../app/templates/generic-edit.pt">
     </browser:page>
     <browser:page

=== modified file 'lib/lp/registry/browser/distribution.py'
--- lib/lp/registry/browser/distribution.py 2011-03-30 21:38:03 +0000
+++ lib/lp/registry/browser/distribution.py 2011-04-06 14:21:36 +0000
@@ -465,7 +465,7 @@

     usedfor = IDerivativeDistribution

- @enabled_with_permission('launchpad.Append')
+ @enabled_with_permission('launchpad.Moderate')
     def addseries(self):
         text = 'Add series'
         return Link('+addseries', text, icon='add')

=== modified file 'lib/lp/registry/browser/tests/distroseries-views.txt'
--- lib/lp/registry/browser/tests/distroseries-views.txt 2010-10-09 16:36:22 +0000
+++ lib/lp/registry/browser/tests/distroseries-views.txt 2011-04-06 14:20:21 +0000
@@ -264,7 +264,7 @@

     >>> login_person(yo_driver)
     >>> view = create_view(youbuntu, name='+addseries')
- >>> check_permission('launchpad.Driver', view)
+ >>> check_permission('launchpad.Moderate', view)
     True

     >>> yo_form = dict(form)