apply toolbarfix to gfycat - fixes #1639
improve RES functionality on comment listing pages (e.g. /r/subreddit/comments)
assists in fixing #1639
detect comments pages with no subreddit - fixes #1468
removed fixsavelinks option as it has become irrelevant (reddit now has save -> unsave)
fixes #1511
deprecate "full comments" functionality once reddit adds it natively. this is done by searching for a link with a class of 'full-comments', and if one exists it means reddit's native functionality has gone live. fixes #1642
- disable showUnreadCount once Reddit's goes live
- showUnreadCount = false now hides Reddit's unread count if people don't want it (automatically on for people who went to the trouble of disabling RES's showUnreadCount, which defaults to on)
- retroUnreadCount gives people the option to use RES's unread count instead of reddit's native one, since some seem to dislike the bright appearance

fixes #1641
Update nightmode.css

Remove erroneous keynav styles
Merge pull request #1643 from erikdesjardins/keynav-background

Remove keyNav background-color from nightmode.css now that it is handled by keyboardNav.js