Add .vimrc header
Add Bootstrapping Section

The bootstrapping section contains commands that must be run in order,
for obscure reasons.

- Set nocompatible first as required by most plugins.  Most
  distributions seem to do this also.
Add comment re: .vimrc.local
Activate pathogen plugin
Fix pathogen plugin

pathogen.vim would not run via a symlink in ~/.vim/autoload, so I remove
the symlink and add a runtime directive to help vim find pathogen.vim.
Update README.md

To reflect new configuration for the pathogen plugin.
Revise README.md

Change code listing to list of code lines.
Install fugitive as git submodule