Use our own version of the Montserrat font

Use our own version of the Montserrat font instead of loading it
from Google's CDN in the hopes of working around ugliness in
Chrome on Windows.

See http://stackoverflow.com/a/13508748/386210

Addresses #3552.
Use media query to load SVG font in windows Chrome

Addresses #3552
Additional comment about webfonts

Addresses #3552
Merge branch '3552-fix_webfonts' into 7.x-1.x

Use local webfonts, generated from Font Squirrel instead of
using Google CDN.  This is mostly to try to get smoother rendering
of the font in Windows Chrome.

Conflicts:
	themes/onboard_theme/css/style.css