Transmission-rpc

Code Refactoring
- Client will use yarl to build url

Features
- check rpc version for kwargs

BREAKING CHANGE

- Client take kwargs only
- Client args `address` and `user` is not avaliable anymore
- Drop python3.5 support

Bug Fixes
- **client:** host parameter in Client.\_\_init\_\_ works without address ([6](https://github.com/Trim21/transmission-rpc/issues/6))