develop: 
master:
Maybe a DB engine with JSON as storage is good. Not much for perfs, but i think that for small projects, where we may need to edit data manually, it may be acceptable and convenient to use...
We will see.
## Ok, so we have a json db. Now what?
well, we could have a relational db.
We must find a way to say get object a, which has child b where the value of b.arg = "hello".
Proposition: add a child_reqs={"a.b.arg": "hello", {"and so": "on"}} param to JSONdb.get().