Night mode tweaks

Some more button hovers and override default white live preview
background
Merge pull request #420 from gavin19/master

Night mode tweaks
updated subreddit manager dropdown to close when you click outside of the dropdown contents
add modules.userTagger.options.gildComments: give gold to comments instead of to user when relevant
userTagger hoverInfo giveGold button now opens "give gold" form on a comment
if the hoverInfo shows in a non gold user's comment with a "give gold" button.
otherwise fall back on default behavior
Merge pull request #422 from andytuba/give-gold-comment

UserTagger HoverInfo "give gold" button opens "gild comment" form when applicable
update to dynamically handle table height for subreddit dropdown
copyright year change

copyright year change
imgur gallery links are now handled
fix bitcoinTip's "give tip" menu's settings link
fixes #425
keyboard nav links should not apply to javascript: links
this seems reasonable inside markdown areas.
fixes #427
neverEndingReddit pauseAfterEvery X pages (default 0 [disabled])
neverEndingReddit.setLoaderWidgetText refactored from .attachLoaderWidget
neverEndingReddit.attachWidget and .togglePause resets loader widget text
neverEndingReddit loader widget text enhanced
split into more structured html
action text updated with reference to NER pause button
neverEndingReddit loader widget - added settings link, mucked around with formatting
neverEndingReddit.pauseAfter notification delayed a little to grab attention
neverEndingReddit loader widget gussied up
neverEndingReddit #NERPause button shows action, not state (option to revert)
neverEndingReddit.options.reversePauseIcon (default false) uses original bad behavior
NER autopauser notification copy updated, plus link to settings