Json parsing

Improved Json parsing to handle JSONs starting with either object or array.

Support for all HTTPrequests

• Supports GET, POST, DELETE, OPTIONS, HEAD, PATCH and PUT.
• Proxy support missing

GET and POST testing

Supports most of the session parameters as requests-library, and GET and POST requests.

Some differences to Requests, but mostly working as an drop in replacesement.

Utilizes Apache httpclient.