Begin refactoring Elastic backend to use helper functions

app/local_settings.example.py

@@ -58,8 +58,7 @@ DRILLDOWN_DEFAULT_PARAMS = {
 # # Delay results by this many days
 # DELAY_DURATION = 10
 
-ELASTICSEARCH_BLACKLISTED = {
-                         }
+ELASTICSEARCH_BLACKLISTED = {}
 
 
 # URLs\
@@ -103,4 +102,4 @@ META_MAX_CHUNK_SIZE = 500
 META_QUERY_SIZE = 10000
 
 DEBUG = True
-PROFILER = False
+PROFILER = False