Remove personal details from global .gitconfig.
Remove personal details from global .gitconfig.

core.useConfigOnly (new in git 2.7) reminds us to always set the user.email
and user.name configuration variables on a per-repository basis.

Also, define core.editor in terms of $EDITOR, which should be a vim variant in
all of my environments. That allows us to continue specifying the vim-specific
--nomru command line option.

jparise/dotfiles,jparise/dotfiles,jparise/dotfiles,jparise/dotfiles