Many changes, many new features (see details)

- Request: readLater + undo + remove from readLater; mark as read
(anywhere: list view, grid view, news details)
- fix many bugs: ...
- page navigation
- many changes in visibleArray of cardWrap view
- view all (as not-logged-in user)
- fuzzy time (a minute ago, about an hour ago, ...)
- cardWrap updateInterval: 30 minutes
- min-height for cardWrap
-

DB:
- many changes: ...

TheCore:
- Update viewCount
- store news' length
- ...