Investigate migrating from mftrace to mf2p1

[kevinbarabash]

@gagern posted the following in KaTeX/KaTeX#614 (comment):

http://stackoverflow.com/questions/20384088/script-for-metafont-to-ttf-conversion suggested md2pt1 as an alternative to mftrace. Sounds reasonable to me. The way I see it, both are perl scripts that call mf resp. mpost at some point, so the same patch to make the font a bit blacker should be applicable there as well. I see lillypond switched from mftrace to mf2pt1 in 2008, perhaps we can learn something from that.

http://www.ctan.org/pkg/mf2pt1

[gagern]

Superseded by #6 which has a lot more detail.