Purpose of maxHeight?

[tehandyb]

Hey I was wondering what the purpose of the max height property was? In my fork I ended up taking it out DevTech-ADVISE#12
I took it out because of an issue where when the fullHeight gets smaller than the max height, the height calculation was slightly innaccurate(for reasons I couldn't figure out), causing some overflow to occur.

I just wanted to check to make sure it wouldn't break other things.