symlink bins from other people's dotfiles
trash obsolete bins
git-conflicts/resolve/promote
Python share -> PATH
tmux tweaks incl. status bar
add rbenv-lock
support for auto-adding current `./bin` dir to PATH

[zsh only] When you cd into a directory, it checks whether the child
`./bin` directory is whitelisted in $AUTOBIN_LIST (default:
`~/.config/autobin`), and automatically adds it to $PATH.

When you leave this directory, the auto-added `bin/` dir is removed from
$PATH.