_{Previously Stack Exchange Additional Optional Features, but renamed as per @enki-code's suggestion}

There are a lot of feature-requests on Meta that seem useful. I've gone through some of them, and made one userscript to add some of them. All these features are optional and can be enabled/disabled in the 'control panel' :)

#Installation and requirements

1. Install Tampermonkey (for Chrome), or Greasemonkey (for Firefox) or similar. These are userscript managers that are required for this script to work, because they also provide support for GM_* functions, which this script relies on to save the options you set!

2. Install the script. Development version. Official version. If you have installed Greasemonkey/Tampermonkey, all you need to do is click the version you want. Anything on the development version is not listed here, but it is on the README of the develop branch - please go there if you want the most up-to-date, but possibly buggy, features :)

3. Go to any SE site (eg. Super User or Stack Overflow). You will be asked to set the options if you browse on an SE site without them already being set. If you want to change the options, a link is displayed (add features) on your profile at the top-right. Clicking it will show a box for you to choose the options you want and save them:

#What features are included? In the latest version: (these link to their corresponding feature-request (from any site on the network), if applicable):

• Make the topbar fixed (stay at the top as you scroll) (v0.1)
• Unfade low score answers (v0.1) (implemented by SE)
• Move show more comments link to top (v0.1)
• Ellipsis after long names (v0.1)
• Rename chat tabs (v0.1)
• Move start a bounty to after the question (instead of after comments) (v0.1)
• Make the bounty box draggable (v0.1)
• Fade out vote signs on deleted answers (v0.1)
• Replace > bullet points with more normal ones (v0.1)
• Differentiate between employees¹ (v0.1)
• Remove exclamation mark on error (v0.1)
• Highlight only the tags for your 'favourite questions' (v0.3)
• Show your username in the topbar (v0.3)
• Colour the answerer's names in comments (v0.4)
• Add KBD and Bullet options in editor toolbar (v0.4) - alt + k / alt + l
• Add pre-defined edit reason checkboxes on edit pages (v0.4)
• Change the 'share' link to show link as markdown format (v0.5)
• Add Ctrl+i,b,k support to comment fields (v0.5)
• Add a button to reveal spoilers in a post (v0.5)
• Highlight on hold/closed questions (v0.7) (replaced by new feature in v1.4)
• Add shortcuts for adding pre-defined comments (v0.7)
• Differentiate between empty blockquotes and spoilers (v0.7)
• Add reply links for quick replying (v0.8)
• Parse cross-site links to questions (v0.8)
• Show answer counts on sidebar (v0.9) (deprecated)
• Button to add author's name to hyperlinks (v0.9)
• Confirm when navigating away if you have started writing a comment (v1.0)
• Allow you to sort bounties by their amout (v1.0)
• Add a label when the question you are viewing is a 'hot-network question' (v1.1)
• View links to imgur in comments inline (v1.2)
• Show your comment and comment replies scores in your profile tabs (v1.2)
• Show tags for the question an answer belongs to on search pages (v1.2)
• Make the vote buttons sticky (v1.3)
• Show title edit diffs separately (v1.4)
• Show meta, chat and blog buttons on hover of a site under the StackExchange button (v1.4)
• Notify you if a new question has been posted on the current site's meta (v1.4)
• Add better CSS for voting buttons (as is on Android SE currenly) (v1.4)
• Make it stand out that a question has been put on hold/closed/marked as a dupe/migrated (v1.4)
• Add a tooltip to posts showing the latest revision's comment on 'edited [date] at [time]' (v1.5)
• Add a button the the editor toolbar to start side-by-side editing (v1.5)
• Always show 'Link from the web' input field when uploading an image (v1.7)
• Show the flag outcome time when viewing your flag history (v1.7)
• Add Scroll To Top button to the topbar (v1.7)
• Show Helpful Flag percentage when viewing your flag history (v1.7)
• View content of linked posts inline (v1.7)

I've only tested it on Google Chrome - please tell me if you find any compatibility issues. You need to have something like Greasemonkey or Tampermonkey to be able to use the script because it relies on GM_* functions.

##Bugs & Feature Requests Please post any bugs or feature requests at GitHub (and not as an answer over here). I'd much prefer them over there as it's easier to manage (and it'll help me learn how to use GitHub :P). Thanks!

##Changes

Please see the change log below.