Revert "Deleted git/gitconfig.symlink.example"

This reverts commit 7bf54fd7c6908118bf5c005c99fc5c8a4be8e81f.
Sexed up ssh-copy-id function a bit.
Merge branch 'master' of github.com:samcday/dotfiles
script/bootstrap should use /bin/bash, as /bin/sh is shit in Ubuntu (it's dash)