Reformated Shell Scripts

I started reformatting the shell scripts for #173. 
I think I missed something, I've been patching as I went along with reading the style guide.

`script/release-vm-images` is scaring me.

That, wasn't suppose to be commited, I commented out the line, since for some reason, it broke my editors syntax highlighting, making it difficult to edit the lines below it, I was suppose to uncomment afterwards, sorry about that.