Add WOFF2 version

Generated from the 160 KB TTF version using the following command:

    curl --data-binary '@/tmp/grumpy.ttf' -o 'grumpy.woff2' -H 'Content-Type: font/ttf' -H 'Accept: font/woff2' -X 'POST' 'http://188.226.250.76/'
Add various web font formats

This makes sure Grumpy can be used in all modern browsers.
Merge pull request #1 from mathiasbynens/woff2

Add WOFF2 version
Merge pull request #2 from mathiasbynens/web-font-kit

Add various web font formats
fix font name of TTF (and chmod -x)