Feature/uri based construction

[Kulv3r]

Per #38

[Kulv3r]

There are persisters that I could not think of a proper way to add uri/collection args:

• dropbox_w_dropbox
• dynamodb_w_boto3
• googledrive_w_pydrive
• local_files
• s3_w_boto3

Also, while implementing it, there were persisters with 2 kinds of URI param - as a string like https://username:password@example.com:5984/, or as a dict like:

dict(
  conn_protocol='tcp',
  host='localhost',
  port='1433',
  db_username='SA',
  db_pass='Admin123x',
  db_name='py2store',
)

And I feel concerned about this. 2 types, not consistent. Maybe convert string-typed URIs to dict ones also. Would be more complex to use, but more consistent overall.

[thorwhalen]

What we talked about during our chat...

[thorwhalen]

rootdir? Or uri?

[thorwhalen]

It seems like old interface is broken with this. Need to either change all usages of MongoPersister, or handle the case where uri is db_name. I'll look into this myself, but note this effect for other persisters you take care of.