Keys with empty values coming from embedded crowd migration

List of keys:

admin.addldapdirectory.permission.allow.update.description
admin.addldapdirectory.permission.allow.add.description
admin.addldapdirectory.permission.allow.delete.description
admin.addldapdirectory.memberof.for.users.group.memberships.description
admin.addldapdirectory.memberof.for.members.of.groups.description
admin.addldapdirectory.ldap.relaxed.dn.standardisation.description

Trevor also mentioned that there's some jsp's which used these things that have been moved to a plugin. We should make sure these jsp's are gone from the jira source as well.