Add vomnibar css rule to avoid page overriding
Merge pull request #1037 from mrmr1993/fixGithub404Formatting

Add vomnibar css rule to avoid page overriding
Remove the link hint activation delay

Adding 400 ms delay to every click sucks. It's a good UX to see which
link you clicked on, but I think the cost is too high.

Give this a try and let me know if you think it's too jarring.

This is in response to #799.
Merge remote-tracking branch 'upstream/master'