Add new icons
Add missing ListReceiver file
Remove commented code
Simplification
Rename GRW* keys to feednotifier
Add icon.png to root directory

The icon will be displayed then in the addon manager even if the addon
is disabled.
Fix xml entry of icon64URL
Rename GRWstatusbar to feednotifier.statusbar
Rename addon to Feed notifier
Remove "Google Reader" references from dtd files
Remove Google Reader references from properties files
Remove old xul
Remove account setup related xul and labels
Rename title of the notification window