This is meant to be a safer alternative since
NULL can often be 0. Let's not rely on that.
And yes, I know this is a lot of files. This is
a safer thing to do in big commits vs for loops.
5f7001e: "Added a new branch"
01456ed: "Fixed a lot of memory leaks"
dac4493: "Fixed all remaining memory leaks that I could figure out"
0792db7: "Removed the smnew macro and the call to _CrtSetDbgFlag()"
Some of these caused destructor-time problems due to static initialization
order fiasco and related issues. Notably, the program would no longer exit on
OSX and had to be killed.
There were probably legitimate fixes in here, but since these are monolithic
commits it's too much work to extract them now. Let's reapply them
individually and in the forward direction.