Convert "latestitem" usage to skin.widgets' "recentitem"

Background:
I recently tried adding a banner graphic to the LatestEpisode list in this skin, and couldn't. I found that the banner is not supplied by XBMC's LatestEpisode list, but rather by skin.widgets' RecentEpisode list. I found this usage working very well in other skins (SiO2-X, for eg).

After a short discussion, I found that there's an intention to remove LatestEpisode (and other "latest" item lists) out of core, because of the widely-used skin.widgets add-on.
See here: https://github.com/xbmc/xbmc/pull/3949#issuecomment-31573068

I decided to convert this skin's usage of the core's "latest" items to skin.widgets' "recent" items.
This was done for movies, tvshows, musicvideos, albums.