I added a gitignore_global to the dotfiles repository. This included
modifying makesymlinks.sh so that the script creates the
gitignore_global upon installation. Also, I created a gitignore_global
file in the dotfiles directory.

	new file:   gitignore_global
	modified:   makesymlinks.sh
A few minor changes that should have been included in the previous
commit. Again, this is part of adding gitignore_global to the dotfiles
system.