Added a boostrapping script to convert an existing system to use the dotfile repository.

bootstrap.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+#
+# A script to convert the local system to use my dotfiles my local dotfiles over
+# the provided ones already on the system. This script will backup any of the
+# existing dot files, before linking to the ones in this repository.
+#
+
+# Helper Functions
+
+# Make a backup of the existing file if it exists
+# Then link to our supplied dotfile
+link() {
+    if [ -f "$HOME/$1" ]; then    
+        cp "$HOME/$1" "$HOME/$1.old"
+        echo "Backed up original $1 to $HOME/$1.old"
+    fi
+    ln -sf "$PWD/$2" "$HOME/$1"
+}
+
+set -x
+set -e
+
+# Configure .vimrc
+link ".vimrc" "vimrc"
+
+# Configure .gitconfig
+link ".gitconfig" "gitconfig"