Files from the 1.0.8.6 xpi were missing '\n' at the end of their last
lines. Changing this would invalidate the Mozilla manifest/signature
data, so I removed that.
No substantive code changes in this commit.
This is a huge jump. Sorry, I will not manually import all intermediary
versions to track development. Significant changes:
- Major feature: Now works with Firefox 52 / current Tor Browser.
Closes #2.
- Major feature: Error page. Closes #3.
- Major feature: Whitelist. Closes #4.
- Regression: Indentation/style is busted. Reopens #1.