Update xin file for Info view
Add last_read for source cell
Xcode stuff
Fix:
- Sensitive navigating when zooming. Basically, increase margin to require users swipe for  along distance
- Auto reset zooming when zoom and pan. Basically, when scrollViewDidEndDecelerating finish, we just handle for the case move next and move forward. Do nothing if user does't swipe enough distance for jumping prev or next. Before, in that case, we **reload** current image so the zoom is set to 1: default level
update change log
Xcode stuff