Olasfar/rec 232/add get params to shorten url

Test steps:

* Configure a shorten project in your machine, see:
https://work4labs.atlassian.net/wiki/pages/viewpage.action?pageId=24248366
https://github.com/olivierlefloch/django-short-urls
* curl -d "login=work4labs&api_key=work4labs&prefix=work4labs&short_path=__test__&long_url=https%3A%2F%2Fw4u-olasfar.work4labs.com%2Flist%2Fol-dev%2F109030522515652%3Fref%3Dshort_link_list%26user%3Douadia" "http://workfor.us/api/v1/new"

192.168.56.15:8000/__test__/recruiter?redirect_suffix=lambda&ref=super_ref&user=ol => https://w4u-olasfar.work4labs.com/list/ol-dev/109030522515652?ref=super_ref&user=ol

So params are included/overrided in the final link.