Merge branch 'dev' into 'master'

modify home_recommend score

See merge request alpha/physical!83

search/utils/topic.py

@@ -188,7 +188,7 @@ class TopicUtils(object):
             query_function_score = {
                 "query": {
                     "bool": {
-                        "must": [
+                        "filter": [
                             {"range": {"content_level": {"gte": low_content_level, "lte": 5}}},
                             {"term": {"has_image":True}},
                             {"term": {"is_online": True}},