[TASK] Add a sample gitconfig and remove the git bash-aliases in favor of git-aliases
[TASK] Add a git setup file based on the setup_git function from @holman
[TASK] Add an install script for 'z'
[TASK] Create symlinks for all git related config files
[TASK] Remove the replacement for the git credential-helper
[BUGFIX] Set git credential-helper to osxkeychain
[TASK] Add a defaults setup-file for OS X