Bug Fixes:
* Badge updates correctly on page load (aa9eece), closes #4
* Closing the popup clears the highlighted elements when testing a selector (46f9966), closes #5
* Corrected link to GitHub repo in options page (f383759)
* Corrected misspelling of Captain America's name. For shame! (1ec2a24)
* Correctly updating badge when set to "None." (be6517a), closes #4
* Do not show git.github.com top level page as subscribable (0f9e0c5)
* Fixed badge display for non-blocked URLs (10724a5)
* Fixed checkbox misalignment in Chrome (eba7e31)
* Fixed unsubscribing from the popup (26b0b67)
* Improved matching GH subscription revision URLs (6df1959)
* More reliable subscribing and unsubscribing actions from the badge (968b83e)

Features:
* Added ability to sort lists alphabetically (513f2ba), closes #7
* Simplified tutorial (e90d0bc)
* Switched to SVG icons for better consistency across browsers (0287a28), closes #14

Corrected escapes for demo spoiler regex