Remove Array.fill (not supported in IE), plus tidying/profiling
Remove Array.fill (not supported in IE), plus tidying/profiling

fredludlow/ngl,j0kaso/ngl,fredludlow/ngl,arose/ngl,fredludlow/ngl,arose/ngl,j0kaso/ngl,fredludlow/ngl,j0kaso/ngl,arose/ngl,arose/ngl