Expose status etc. when editing upgrade, rename Email Settings

i.e. latter is renamed from Email Profiles, but within UI only for now

tailbone/templates/upgrades/view.mako

@@ -38,7 +38,7 @@
 
 ${parent.body()}
 
-% if not instance.executed and request.has_perm('{}.execute'.format(permission_prefix)):
+% if not instance.executed and instance.status_code == enum.UPGRADE_STATUS_PENDING and request.has_perm('{}.execute'.format(permission_prefix)):
     <div class="buttons">
       % if instance.enabled and not instance.executing:
           ${h.form(url('{}.execute'.format(route_prefix), uuid=instance.uuid), class_='autodisable')}