Fix escaping and quoting special characters

Merge pull request #10 from IdanHaim/master

Fix escaping and quoting special characters

Fix some query escaping issues

Merge pull request #9 from IdanHaim/RavenDB-6452

RavenDB-6452

Fix some python version 3 issues

Merge pull request #7 from IdanHaim/master

RavenDB-6332

Fix multi load and requests header bugs

Merge pull request #6 from IdanHaim/master

update setup.py