better synching of source and destinations

lemur/plugins/bases/destination.py

@@ -12,6 +12,7 @@ from lemur.plugins.base import Plugin, plugins
 class DestinationPlugin(Plugin):
     type = 'destination'
     requires_key = True
+    sync_as_source = False
 
     def upload(self, name, body, private_key, cert_chain, options, **kwargs):
         raise NotImplementedError

lemur/plugins/lemur_aws/plugin.py

@@ -195,6 +195,7 @@ class AWSSourcePlugin(SourcePlugin):
     slug = 'aws-source'
     description = 'Discovers all SSL certificates and ELB endpoints in an AWS account'
     version = aws.VERSION
+    sync_as_source = True
 
     author = 'Kevin Glisson'
     author_url = 'https://github.com/netflix/lemur'