Redageddon

I didn't use this with unity. I used it in my own project. I just hated that there was no way to change the appId in the same program that...

could always default, if a steam id isnt passed, it still reads from file, so it doesnt break compatability

I just made this hastily, because It annoyed the crap out of me that there was no build in way to change the appId even when that should seem like...

I fixed the merge code so it doesn't break compatibility.