Redundant word "Version" in TTF version string

[jfkthame]

I notice that the .ttf file ends up with a version string (name id 5) that reads:

<namerecord nameID="5" platformID="3" platEncID="1" langID="0x409">
  Version Version 0.3.1
</namerecord>

I guess this is because https://github.com/mozilla/twemoji-colr/blob/master/Gruntfile.js#L22 prefixes the word "Version" to the number, but then the webfont generator must be automatically doing the same thing.

So presumably just removing this from the gruntfile should fix it. (Untested.)