Added flexibility to get.vimfiles.sh

[ccalvert]

Jim,

I modified get.vimfiles.sh to use a slightly different argument to "git clone". This allows it to work correctly on systems that have multiple github identities.

Note that you should cherry pick the changes to get.vimfiles.sh. The change to vimrc_settings was just to update my color scheme.

Charles

[coderifous]

Hey Charles - I'd like to go the other direction with this file. Instead of having the URL broken out into variables - it would be better just to assign the URL as a string without any variable construction at all. A chat w/ Ryan convinced me that having variables to build up a URL in this context is overkill - even just the repo-owner name like I had before.

If you give me a commit that squashes it down to just a single line for assigning the URL variable, I will merge it in.

-Jim