Added visual feedback when tapping the subreddit/channel at the header (to show/hide the sidebar menu).
Better control for avoiding the reload of a stream before finishing a previous load... or something.
Stop showing/hiding the sidebar menu while loading links, on mobile.

Again, some weird stuff happens (the views sort of "lose" their
overflow-x: hidden properties, it seems) on Mobile Safari when showing
or hiding the sidebar menu while loading a subreddit/Channel links.

Not sure if there's something I'm missing or if it's indeed a Mobile
Safari bug.
Bumped appcache