`cursor` property name miscolored

[timgthomas]

[timgthomas]

This fix caused #10, which is arguably more serious. The Less and Sass parsers add the same classes (syntax--entity, syntax--name, syntax--tag, and syntax--css) to both the cursor property name and nested tags, with no other way to differentiate the elements. :(

[timgthomas]

Upstream issue tracking cursor and other property names: atom/language-less#79.