[snowpatch] [PATCH] jenkins: refactor API HTTP GET boilerplate into new method

[Russell Currey]

On Thu, 2016-06-16 at 10:59 +1000, Andrew Donnellan wrote:
> All our side-effect-free Jenkins API calls follow the same pattern of
> creating a hyper Client, making a GET request to the relevant JSON API
> endpoint, and decoding the returned JSON into a JSON Object (right now the
> top-level data types are all Objects).
> 
> Refactor this boilerplate into a new method, get_api_json_object().
> 
> Signed-off-by: Andrew Donnellan <andrew.donnellan at au1.ibm.com>
> 
> ---

While you're refactoring, can you get the Jenkins code to use the client created
in main?  This is doubly important now we have proxy support