DAO query method requires 'query:' in query

[Steven-Eardley]

Aggregations don't need to be prefixed with a query in es 1.x, but if it's omitted querying via models based on the dao will fail with an exception. My current workaround is to add a match_all query to my aggregation

myquery = {
    "query": { "match_all" : {} },
    "aggregations": {...