StackType for love.graphics.push and other questions

[davisdude]

Hey, I was looking through the wiki and saw an enum I thought would be useful- StackType.
I edited the page to include mention of StackType, but I was wondering if somebody could check and make sure all of my information is correct.

Also, I think it would be useful to have something like love.graphics.getCurrentScale and friends, or something of that nature. Maybe not necessarily useful, but maybe helpful or beneficial.
I can't really think of any use cases off the top of my head, other than displaying stat information that could be kept track of using local variables, but I'm sure it might help.