Fix network indicator getting stuck on after closing Awful Browser.

We would receive two calls to -webViewDidStartLoad: but only one matching call
to -webViewDidFinishLoad:.
Don't bother pausing/resuming fetched results data source.

Seems to be unnecessary on iOS 7.
Immediately mark replied to/forwarded PMs after replying/forwarding.
Replace home-baked pull up to refresh with SVPullToRefresh master branch.
Delete obsolete -shouldAutorotateToInterfaceOrientation: implementations.

i.e. all of them.
Add another possible location for less compiler.
Always show "scroll to end" top bar after loading a page.

Fixes #265 in an admittedly lame way.
Delete AwfulOldTableViewController.

The last vestige of a bygone era.
Switch action icons' normal/selected images.

Now filled in normally, switching to an outline when selected.
Tweak icon action sheet copy for user actions.

We're already in the context of "a user".
Dismiss iPhone icon action sheet with outside tap.