[charmod-norm] new commits pushed by aphillips

The following commits were just pushed by aphillips to 
https://github.com/w3c/charmod-norm:

* Add font subsetting

Added a greasemonkey script for computing the non-Latin-1 characters 
in the current document. This is used to obtain a subsetted Noto Sans 
from google's server.

Added font.woff2 generated from the current unique set of code points.

Modified the local stylesheet to reference font.woff2.
  by @aphillips
https://github.com/w3c/charmod-norm/commit/cd70024afaabff974a99888cbeffe318930a6e17

* Merge pull request #33 from aphillips/gh-pages

Add font subsetting
  by aphillips
https://github.com/w3c/charmod-norm/commit/617c4af555ee60a5688ea7d73b9cfd025f960266