Fix KeyError bug in format_index function

Add support for replication and cluster API

Properly populate exceptions from bulk operations

Revamp the library for 5.0.0.

Add new parameters stream and skip_inaccessible_cols to method AQL.ex…

…ecute

Add changes for ArangoDB 3.4

Make Cursor.close return None when ID is not set

Remove default limit of 100 from simple queries

Update .gitignore and add parameters to Database.create_collection

Update setup.py, MANIFEST.in and docs/conf.py