Issue #149: Add Preference for Overscan compensation

Adds a preference to compensate for Overscan on devices like the OUYA
which don't provide a built in mechanism to adjust things like a Google TV
device does.

If enabled, will adjust the main layout to compensate for the overscan of
some TVs so that all items can be displayed on the screen.
Add French and Spanish translations for new preference settings.
Issue #150: Add Show title to Grid view

Add the Show title to the grid view like it is in the Movie Grid view.
Issue #151: Adjust size of Season posters and spacing

Adjust the size of the season poster and spacing to allow for more seasons
to be displayed in the gallery.
Issue #153: Add all Context menu option

New context menu for the seasons browser to add all items to the Video
queue.  Also enable the short cut keys for navigation.
More translations.