AbstactPosterGalleryAdapter tests and code coverage
Release 1.8.2
Various bug fixes

1. Make sure one instance of OkHttp is used instead of multiple.
2. Fix Toggle Watch Status in TV Shows view, both Grid and Gallery.
More unit tests.
Migrate Main Menu to a Fragment for easier swapping.

This migrates the main menu to a fragment so that it can possibly be
swapped out for a RowsFragment for use with Android TV devices.  Also
allows for easier swap out to other view implementations.

In addition created necessary layouts for when the application is run on
an unsupported normal screen device like a phone.  It will display a message
on the screen instead of crashing.
Add padding to clock layout to improve appearance.