Update Calender View on Coming Episodes Page.

Note: these updates are a bit hacky and will be cleaned up when new CSS arrives.

Tweak display of show cards.
Display show time based on General settings ... Date and Time.
Add hover over showtitle incase card image is non-descriptive.
Add text to columns where there are no shows for this day.
Remove filters from this view.
Ideally we want this logic abstracted into somewhere re-usable, and safe.
I have a feeling that the time parsing can be abstracted again as well, but I haven't grepped for other usages of sbdatetime.fromtimestamp.

First suggestion would just be:
 $sickbeard.airtime_from_episode( $cur_result ) 

or similar.

This isn't a show-stopper, obviously. This works and can go out.