Initial plans for fixing hidden post display

File information is being removed from the API so alternatives will have to be used. For missing thumbnail info, I'm just replacing them with a "Hidden" thumb placeholder. For actual posts, I'm using alternative information methods and completely discontinuing use of the API.

I'm thinking I'll add support for "status:banned" to the borders portion.
Greasemonkey icon + "status:banned" support

* Added a simple Greasemonkey icon that shows up in the script list.
* Added custom tag border support for banned posts.
Hiddent comment fixes + Tag list scrollbars

* Fixed the problems with missing info on hidden images in the comments section.
* Added an option for tweaking the tag lists on individual posts with a limited height and scrollbars.

The scrollbars are a style I've been using in stylish for a long time and basically work the same way as the scrolling "favorited by" list that used to be in the script. It'll allow the user to easily limit the length of the tag lists so that they don't move all the sidebar options below them way off the screen. I hope I didn't word the description for it too oddly...
Cleanup

For the average user that just wants access to the occasional hidden image, this is pretty much a good alternative. For the user that outright searches for the hidden tags, the alternative isn't that great.

What I've observed:
1) Hidden images get their information removed only if they're at the start of the results.
2) If you have a hidden image anywhere after a regular image in the results, it's information is not removed.
3) Banned and deleted posts do not count as actual hidden images and retain all their info.

In short, if you search for the hidden tags, every post will have it's information removed. If you're just doing an average search, any consecutive hidden images at the start of the results will have their info removed while all other hidden images that come after a regular image will display properly.

The errors (Failbooru) were making things quite a pain to test... Considering other approaches, but this might be good as a starting release.
Fixed thumbnails + Thumbnail cache

* Updated to search for thumbnail info in order to fix broken/hidden thumbnails.
* Added a cache for storing the md5/filename info for thumbnails in order to reduce search and load times.
Cleanup

Wrong default value.
DDL fixes + Cache updates

* Updated the cache to store extensions as well.
* Fixed direct downloads on hidden posts.
* Cut down the cache limit options to every 1000.
* Added a temporary special case for test version users when converting settings.
Comment changes

* Changed the comment section method to one more similar to the current listing one.
Version 6.1
Version 6.1
Merge pull request #29 from pseudonymous/Fixerupper

Version 6.1 (Fixerupper)