Link hints have incorrect style / are illegible

[dlh]

Using vimari 1.9, and Safari 7.0 (9537.71) (with flash disabled).

Steps to reproduce

1. Go to espn.com, and active link hints
2. The link hints are illegible in many spots.

Excepted result

The link hints should have a yellow background.

[guyht]

This looks like a css issue. Maybe a clash with espn's css

[genericsteele]

Running into the same issue on the Basecamp homepage if it helps.

[guyht]

Given the statistical improbability of any site on the internet using the internalVimiumHintMarker class, I think this is a safe merge 👍

Thanks for the commit!! This will be in the next release.

[guyht]

This has been fixed as part of #34

[guyht]

Fixed in v1.10