Adds locally failing test for #10
Fixes some test titles
Closes #10, adding support for Contextual Alts
v0.2.0

Adds support for Contextual Alternates.

The OpenType specification requires them to be on by default, but (like
with other features Normalize-OpenType.css covers) not every browser
respects this.

Now, Contextual Alternates will be one by default. This can be
especially important for script faces.