Add .woff2 to the extension whitelist.
Add .woff2 to the extension whitelist.

Fixes #48.
ddtxra/rawgit,cnbin/rawgit,sereepap2029/rawgit,cnbin/rawgit,matsmith/rawgit,gnowxilef/rawgit,gnowxilef/rawgit,sereepap2029/rawgit,matsmith/rawgit,matsmith/rawgit,cnbin/rawgit,ssddi456/rawgit,ssddi456/rawgit,ddtxra/rawgit,ssddi456/rawgit,rgrove/rawgit,sereepap2029/rawgit,ddtxra/rawgit,rgrove/rawgit,gnowxilef/rawgit