title: Vim: Stop "existing swap file" warnings
body: <p>I have no idea why, but it seems that no matter how I quit out of Vim, it always leaves the swap files behind. So, whenever I open that file again, I get an irritating error about an existing swap file. Every time I have to choose "delete". I really wish this would stop. Is there anything I can put in my <code>.vimrc</code> to tell it, "just delete the swap file if it exists and leave me alone?"</p>