build with sdk version 17
small tidy of manifest file
use format string for first aired text
display episodes' first aired dates in EpisodeDetailsFragment
Rename app from "Next Episode" to "Episodes"

Update package name, database uri, etc.
Add refresh show menu item to show activity

Fetches show and episode information from tvdb and updates the
corresponding information stored in the local database.

Performs this task in a service called RefreshShowService.