add banner path column to database
add some logging to database creation and upgrade
parse and store banner path in database

when show is added or updated
add universal image loader jar
initialise universal image loader in app singleton
display banner images in shows list fragment

use universal image loader to load banners from thetvdb and display them
instead of the text of the show title.

if the banner is missing or while it is being downloaded continue to
display the show title as text. display a completely transparent image
that has the same dimensions as the banners on top, so that the list
item is the correct size.

use universal image loader's default memory and disk caches.
Merge branch 'shows-list-banners'
disable fast scroll in shows list

gets in the way of the starred toggle.
also change the scrollbar style to outsideOverlay since it looks better