fix foursquare image urls

dict comes down looking like
{'prefix': 'https://irs2.4sqi.net/img/user/', 'suffix': '/4a99644f3ace0.jpg'}, 'a

images look like

https://irs2.4sqi.net/img/user/128x128/4a99644f3ace0.jpg
update to get unsized image
Merge branch 'blackmad-develop' into develop