[Vimperator] Hint text readability (was:support for: '.' and 'n')

[Mark Frost]

> There is the 'hintstyle' option, where you can at least easily change
> colors, I am not satisfied with the font myself. But here it doesn't use
> a serif font, I think it inherits the firefox settings for monospaced
> fonts.
I played some more with settings and the hints do inherit the
monospaced settings.  I made a one-line change to my local copy to add
a non-breaking space at the end of the hint text which has increased
readability dramatically.
hints.js:237 hintElem.innerHTML = hintText + "&nbsp";

It's cheap and effective, at least for me.

Mark Frost
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