Added Font 'defaults' option

[ggmittal]

Have added 'default' option in font selector to make it not to generate any css or override any css from other stylesheets. So if default is selected then it doesn't affect anything on frontend.

[codeclinic]

Hi @ggmittal

I'm trying to resurrect this framework. Please add your pull reqest to my repo and let's get this thing active again.

https://github.com/codeclinic/Abased-Titan-Framework

Thanks Phill