Add updates to prevent FOUC

[ghost]

Added a quick example (and doc) on how to hide text block while custom font is loading.

[patrickmarabeas]

This doesn't allow for each font to appear as loaded - couldn't we simply hide/show content based on fontName/no-fontName classes on html element?

[ghost]

Ah your right. What are you thinking for showing/hiding content based on the fontName/no-fontName classes?

[patrickmarabeas]

Ah assumed fontName class was added on success. Could either do that, or add a fontName-loading class

[ghost]

Reworked the styles and JS a bit so there is a class hook to hide elements using custom fonts on load. Then hooked into the fontname class that is added on success/failure to display elements using custom fonts.