Quick and easy gallery "n of m" display fix.

Gets rid of the 'niceLength' variable which never actually did anything and makes it so albums with less than 10 photos don't display an extra leading zero (which was the purpose of doing this).
Fix for dupe/missing videoTimes/videoUploaded

Duplicate IDs are prevented by piping them into an object rather than an
array. Introduced a loop to ensure that multiple Youtube URLs on the
same page all get tagged, not just the last instance.
Night mode tweaks

Comment navigator background/close button background/hover
Night mode - standardize quotes

Replace the remainder of the double quotes with singles.
Night mode - restore zeroed right margin

I removed this in error for 4.2.0
Revert "bitcointip temporarily disabled"

This reverts commit 5d2f800a3b0bbd9f37090ba0243bedb40e9ba062.
Bring over latest bitcointip user script changes.
Show the 'last edited' timestamp

Append the timestamp to the minutes/hours/days ago display without the
need to hover.
Merge pull request #354 from nm3210/patch-2

Quick and easy gallery 'n of m' display fix.
Merge pull request #367 from gavin19/master

Fix for Youtube dupes/missing videoTimes + night mode CSS
Merge pull request #368 from skeeto/bitcointip-retry

Bitcointip retry
added cross domain logic check on xmlhttprequests for Firefox to prevent issues with 3rd party cookie blockage
- rename bitcointip module and set off by default

- version number bump within userscript
bugfix for show images module where overlapping images would sometimes occur (specifically on failed loads, or on images users hid before load completed, then re-showed)
fix for username hider on subreddit moderator listing pages
showLastEditedTimestamp fix

A small number of recently edited comments/posts do not get the title
attribute applied immediately. To the user this appears as a barren
brace of brackets. Added a simple attribute selector as a workaround.
Merge pull request #372 from gavin19/master

showLastEditedTimestamp fix
lowercased all instances of modules['bitcointip']
readme readability (markdown changes)

Fix the bullets for github markdown. Previously everything was shown as one paragraphy, which makes it rather hard to read. It'll be slightly harder to read outside of github, but easier than it previously was IN github.
updates to tweet handling for Firefox / AMO request.