Use CSS3 Animation for the "loading icon" blinking and move the definition of
the loading icon to CSS as well.
CSS3 Animations are supported by IE10, Firefox and using the -webkit prefix by
Chrome and Safari.
I've dropped the usage of element.classList in favour of supporting refreshing/
article downloading in IE9 (again). The classList stuff isn't necessarily
needed, as the elements in question only get one or no class assigned.
I've dropped no longer supported css options like:
the appearance option isn't supported by any browser, the -webkit-appearance
doesn't change anything visible.
-webkit-font-smoothing support was dropped in chrome 22 and font-smoothing
isn't specified anywhere.
Inserts a (unread/total)" items count in front of each subcription
on the feeds page.
models/feed.php adds two functions: get_feed_unread_counts(), get_all_w_counts().
get_feed_unread_counts - returns either an array of (unread/total) counts indexed
by feed id or a singl (unread/total) for a specific id.
get_all_w_counts() returns the same as get_all() but appends items_unread and
items_total columns.
controller/feed.php modifies Router\post_action('refresh-feed',function() to
retrun the (unread/total) count in the retruned ajax json array.
Router\get_action('feeds',function() was modified to call get_all_w_counts().
templates/feeds.php was modified to insert the (unread/total) count into the
span id="loading-feed-" such that is can be updated after a refresh.
assets/js/feed.js was modified to to have the Update and hideRefreshIcon
update the returned (unread/total) amounts in the "loading-feed" span.
