Display unread count for tags.
Yet TODO: dynamic updating!
Unread counts for all tags with proper update
Honor first argument to only check feeds that are less than argv[1] seconds old.
Merge pull request #99 from fedxa/upstream+tagcount

Displaying number of unread items for each tag
Big cleanup at the end.
Merge branch 'master' of git://github.com/SSilence/selfoss

Conflicts:
	controllers/Tags.php