Fixes Images Without Cache IDs
Fixes Images Without Cache IDs

Fixes Hover Zoom in places without cache IDs (the change is to make GET parameters optional)--specifically, on-profile activity feed thumbnails and tiny profile thumbnails (like tally on images, events, etc).  Did some more testing on this one, sorry for the double-pull!
JamieSharpe/hoverzoom,superlime/hoverzoomgold,JamieSharpe/hoverzoom,smaltby/hoverzoom,superlime/hoverzoomgold,extesy/hoverzoom,extesy/hoverzoom,smaltby/hoverzoom,MhdHejazi/hoverzoom,MhdHejazi/hoverzoom