Issue #62: Add Help Tutorial

Adds a Help Tutorial to the application that gives an overview of Serenity
for Google TV and it's functionality.
Set version to 1.1.0-M2.
Issue #68: Fix possible NPE when viewing TV Shows

When a TV Show just has the Show title but no seasons or episodes the
Leaf Count can be returned as Null by Plex.  Serenity was expecting this
to always contain a numeric value.

Error report from Crash report through Google Play.

Set version to 1.1.0-SNAPSHOT